| Year |
Citation |
Score |
| 2024 |
Comans CM, Smart SM, Kast ER, Lu Y, Lüdecke T, Leichliter JN, Sigman DM, Ikejiri T, Martínez-García A. Enameloid-bound δ N reveals large trophic separation among Late Cretaceous sharks in the northern Gulf of Mexico. Geobiology. 22: e12585. PMID 38385603 DOI: 10.1111/gbi.12585 |
0.425 |
|
| 2024 |
Moretti S, Auderset A, Deutsch C, Schmitz R, Gerber L, Thomas E, Luciani V, Petrizzo MR, Schiebel R, Tripati A, Sexton P, Norris R, D'Onofrio R, Zachos J, Sigman DM, et al. Oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum. Science (New York, N.Y.). 383: 727-731. PMID 38359106 DOI: 10.1126/science.adh4893 |
0.31 |
|
| 2023 |
Moretti S, Duprey NN, Foreman AD, Arns A, Brömme S, Jung J, Ai XE, Auderset A, Bieler AL, Eck C, Farmer J, Hinnenberg B, Lacerra M, Leichliter J, Lüdecke T, ... ... Sigman DM, et al. Analytical improvements and assessment of long-term performance of the oxidation-denitrifier method. Rapid Communications in Mass Spectrometry : Rcm. 38: e9650. PMID 38073197 DOI: 10.1002/rcm.9650 |
0.347 |
|
| 2023 |
Hess AV, Auderset A, Rosenthal Y, Miller KG, Zhou X, Sigman DM, Martínez-García A. A well-oxygenated eastern tropical Pacific during the warm Miocene. Nature. PMID 37380780 DOI: 10.1038/s41586-023-06104-6 |
0.324 |
|
| 2022 |
Farmer JR, Pico T, Underwood OM, Cleveland Stout R, Granger J, Cronin TM, Fripiat F, Martínez-García A, Haug GH, Sigman DM. The Bering Strait was flooded 10,000 years before the Last Glacial Maximum. Proceedings of the National Academy of Sciences of the United States of America. 120: e2206742119. PMID 36574665 DOI: 10.1073/pnas.2206742119 |
0.303 |
|
| 2022 |
Wang XT, Wang Y, Auderset A, Sigman DM, Ren H, Martínez-García A, Haug GH, Su Z, Zhang YG, Rasmussen B, Sessions AL, Fischer WW. Oceanic nutrient rise and the late Miocene inception of Pacific oxygen-deficient zones. Proceedings of the National Academy of Sciences of the United States of America. 119: e2204986119. PMID 36322766 DOI: 10.1073/pnas.2204986119 |
0.82 |
|
| 2022 |
Auderset A, Moretti S, Taphorn B, Ebner PR, Kast E, Wang XT, Schiebel R, Sigman DM, Haug GH, Martínez-García A. Enhanced ocean oxygenation during Cenozoic warm periods. Nature. 609: 77-82. PMID 36045236 DOI: 10.1038/s41586-022-05017-0 |
0.725 |
|
| 2022 |
Kast ER, Griffiths ML, Kim SL, Rao ZC, Shimada K, Becker MA, Maisch HM, Eagle RA, Clarke CA, Neumann AN, Karnes ME, Lüdecke T, Leichliter JN, Martínez-García A, Akhtar AA, ... ... Sigman DM, et al. Cenozoic megatooth sharks occupied extremely high trophic positions. Science Advances. 8: eabl6529. PMID 35731884 DOI: 10.1126/sciadv.abl6529 |
0.653 |
|
| 2020 |
Ai XE, Studer AS, Sigman DM, Martínez-García A, Fripiat F, Thöle LM, Michel E, Gottschalk J, Arnold L, Moretti S, Schmitt M, Oleynik S, Jaccard SL, Haug GH. Southern Ocean upwelling, Earth's obliquity, and glacial-interglacial atmospheric CO change. Science (New York, N.Y.). 370: 1348-1352. PMID 33303618 DOI: 10.1126/science.abd2115 |
0.349 |
|
| 2020 |
Zhang X, Ward BB, Sigman DM. Correction to "Global Nitrogen Cycle: Critical Enzymes, Organisms, and Processes for Nitrogen Budgets and Dynamics". Chemical Reviews. PMID 32786422 DOI: 10.1021/Acs.Chemrev.0C00743 |
0.588 |
|
| 2020 |
Zhang X, Ward BB, Sigman DM. Global Nitrogen Cycle: Critical Enzymes, Organisms, and Processes for Nitrogen Budgets and Dynamics. Chemical Reviews. PMID 32530264 DOI: 10.1021/Acs.Chemrev.9B00613 |
0.692 |
|
| 2020 |
Lueders-Dumont JA, Sigman DM, Johnson BJ, Jensen OP, Oleynik S, Ward BB. Comparison of the isotopic composition of fish otolith-bound organic N with host tissue Canadian Journal of Fisheries and Aquatic Sciences. 77: 264-275. DOI: 10.1139/Cjfas-2018-0360 |
0.501 |
|
| 2020 |
Smart SM, Fawcett SE, Ren H, Schiebel R, Tompkins EM, Martínez‐García A, Stirnimann L, Roychoudhury A, Haug GH, Sigman DM. The Nitrogen Isotopic Composition of Tissue and Shell‐Bound Organic Matter of Planktic Foraminifera in Southern Ocean Surface Waters Geochemistry, Geophysics, Geosystems. 21. DOI: 10.1029/2019Gc008440 |
0.776 |
|
| 2019 |
Duprey NN, Wang XT, Kim T, Cybulski JD, Vonhof HB, Crutzen PJ, Haug GH, Sigman DM, Martínez-García A, Baker DM. Megacity development and the demise of coastal coral communities: evidence from coral skeleton δ N records in the Pearl River estuary. Global Change Biology. PMID 31732999 DOI: 10.1111/Gcb.14923 |
0.764 |
|
| 2019 |
Kast ER, Stolper DA, Auderset A, Higgins JA, Ren H, Wang XT, Martínez-García A, Haug GH, Sigman DM. Nitrogen isotope evidence for expanded ocean suboxia in the early Cenozoic. Science (New York, N.Y.). 364: 386-389. PMID 31023923 DOI: 10.1126/Science.Aau5784 |
0.837 |
|
| 2019 |
Hasenfratz AP, Jaccard SL, Martínez-García A, Sigman DM, Hodell DA, Vance D, Bernasconi SM, Kleiven HKF, Haumann FA, Haug GH. The residence time of Southern Ocean surface waters and the 100,000-year ice age cycle. Science (New York, N.Y.). 363: 1080-1084. PMID 30846597 DOI: 10.1126/Science.Aat7067 |
0.442 |
|
| 2019 |
Fripiat F, Martínez-García A, Fawcett SE, Kemeny PC, Studer AS, Smart SM, Rubach F, Oleynik S, Sigman DM, Haug GH. The isotope effect of nitrate assimilation in the Antarctic Zone: Improved estimates and paleoceanographic implications Geochimica Et Cosmochimica Acta. 247: 261-279. DOI: 10.1016/J.Gca.2018.12.003 |
0.754 |
|
| 2019 |
McRose D, Lee A, Kopf S, Baars O, Kraepiel A, Sigman D, Morel F, Zhang X. Effect of iron limitation on the isotopic composition of cellular and released fixed nitrogen in Azotobacter vinelandii Geochimica Et Cosmochimica Acta. 244: 12-23. DOI: 10.1016/J.Gca.2018.09.023 |
0.51 |
|
| 2019 |
Auderset A, Martínez-García A, Tiedemann R, Hasenfratz AP, Eglinton TI, Schiebel R, Sigman DM, Haug GH. Gulf Stream intensification after the early Pliocene shoaling of the Central American Seaway Earth and Planetary Science Letters. 520: 268-278. DOI: 10.1016/J.Epsl.2019.05.022 |
0.444 |
|
| 2019 |
Marconi D, Weigand MA, Sigman DM. Nitrate isotopic gradients in the North Atlantic Ocean and the nitrogen isotopic composition of sinking organic matter Deep Sea Research Part I: Oceanographic Research Papers. 145: 109-124. DOI: 10.1016/j.dsr.2019.01.010 |
0.422 |
|
| 2019 |
Sims ZC, Cohen AL, Luu VH, Wang XT, Sigman DM. Uptake of groundwater nitrogen by a near-shore coral reef community on Bermuda Coral Reefs. 39: 215-228. DOI: 10.1007/S00338-019-01879-5 |
0.719 |
|
| 2018 |
Wang XT, Cohen AL, Luu V, Ren H, Su Z, Haug GH, Sigman DM. Natural forcing of the North Atlantic nitrogen cycle in the Anthropocene. Proceedings of the National Academy of Sciences of the United States of America. PMID 30275314 DOI: 10.1073/Pnas.1801049115 |
0.839 |
|
| 2018 |
Studer AS, Sigman DM, Martínez-García A, Thöle LM, Michel E, Jaccard SL, Lippold JA, Mazaud A, Wang XT, Robinson LF, Adkins JF, Haug GH. Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise Nature Geoscience. 11: 756-760. DOI: 10.1038/S41561-018-0191-8 |
0.769 |
|
| 2018 |
Kemeny PC, Kast ER, Hain MP, Fawcett SE, Fripiat F, Studer AS, Martínez-García A, Haug GH, Sigman DM. A Seasonal Model of Nitrogen Isotopes in the Ice Age Antarctic Zone: Support for Weakening of the Southern Ocean Upper Overturning Cell Paleoceanography and Paleoclimatology. 33: 1453-1471. DOI: 10.1029/2018PA003478 |
0.814 |
|
| 2018 |
Granger J, Sigman DM, Gagnon J, Tremblay J, Mucci A. On the Properties of the Arctic Halocline and Deep Water Masses of the Canada Basin from Nitrate Isotope Ratios Journal of Geophysical Research: Oceans. 123: 5443-5458. DOI: 10.1029/2018Jc014110 |
0.428 |
|
| 2018 |
Schiebel R, Smart SM, Jentzen A, Jonkers L, Morard R, Meilland J, Michel E, Coxall HK, Hull PM, de Garidel-Thoron T, Aze T, Quillévéré F, Ren H, Sigman DM, Vonhof HB, et al. Advances in planktonic foraminifer research: New perspectives for paleoceanography Revue De MicropaléOntologie. 61: 113-138. DOI: 10.1016/J.Revmic.2018.10.001 |
0.622 |
|
| 2018 |
Fawcett SE, Johnson KS, Riser SC, Van Oostende N, Sigman DM. Low-nutrient organic matter in the Sargasso Sea thermocline: A hypothesis for its role, identity, and carbon cycle implications Marine Chemistry. 207: 108-123. DOI: 10.1016/J.Marchem.2018.10.008 |
0.703 |
|
| 2018 |
Smart SM, Ren H, Fawcett SE, Schiebel R, Conte M, Rafter PA, Ellis KK, Weigand MA, Oleynik S, Haug GH, Sigman DM. Ground-truthing the planktic foraminifer-bound nitrogen isotope paleo-proxy in the Sargasso Sea Geochimica Et Cosmochimica Acta. 235: 463-482. DOI: 10.1016/J.Gca.2018.05.023 |
0.836 |
|
| 2018 |
Lueders-Dumont JA, Wang XT, Jensen OP, Sigman DM, Ward BB. Nitrogen isotopic analysis of carbonate-bound organic matter in modern and fossil fish otoliths Geochimica Et Cosmochimica Acta. 224: 200-222. DOI: 10.1016/J.Gca.2018.01.001 |
0.754 |
|
| 2018 |
Peng X, Fawcett SE, van Oostende N, Wolf MJ, Marconi D, Sigman DM, Ward BB. Nitrogen uptake and nitrification in the subarctic North Atlantic Ocean Limnology and Oceanography. 63: 1462-1487. DOI: 10.1002/Lno.10784 |
0.795 |
|
| 2018 |
Hain MP, Sigman DM, Higgins JA, Haug GH. Response to Comment by Zeebe and Tyrrell on “The Effects of Secular Calcium and Magnesium Concentration Changes on the Thermodynamics of Seawater Acid/Base Chemistry: Implications for the Eocene and Cretaceous Ocean Carbon Chemistry and Buffering” Global Biogeochemical Cycles. 32: 898-901. DOI: 10.1002/2018Gb005931 |
0.726 |
|
| 2017 |
Rafter PA, Sigman DM, Mackey KRM. Recycled iron fuels new production in the eastern equatorial Pacific Ocean. Nature Communications. 8: 1100. PMID 29062103 DOI: 10.1038/S41467-017-01219-7 |
0.39 |
|
| 2017 |
Burls NJ, Fedorov AV, Sigman DM, Jaccard SL, Tiedemann R, Haug GH. Active Pacific meridional overturning circulation (PMOC) during the warm Pliocene. Science Advances. 3: e1700156. PMID 28924606 DOI: 10.1126/Sciadv.1700156 |
0.535 |
|
| 2017 |
Ren H, Sigman DM, Martínez-García A, Anderson RF, Chen MT, Ravelo AC, Straub M, Wong GTF, Haug GH. Impact of glacial/interglacial sea level change on the ocean nitrogen cycle. Proceedings of the National Academy of Sciences of the United States of America. PMID 28760968 DOI: 10.1073/Pnas.1701315114 |
0.785 |
|
| 2017 |
Ren H, Chen YC, Wang XT, Wong GTF, Cohen AL, DeCarlo TM, Weigand MA, Mii HS, Sigman DM. 21st-century rise in anthropogenic nitrogen deposition on a remote coral reef. Science (New York, N.Y.). 356: 749-752. PMID 28522534 DOI: 10.1126/Science.Aal3869 |
0.833 |
|
| 2017 |
Duprey NN, Wang XT, Thompson PD, Pleadwell JE, Raymundo LJ, Kim K, Sigman DM, Baker DM. Life and death of a sewage treatment plant recorded in a coral skeleton δ(15)N record. Marine Pollution Bulletin. PMID 28483141 DOI: 10.1016/J.Marpolbul.2017.04.023 |
0.713 |
|
| 2017 |
Wang XT, Sigman DM, Prokopenko MG, Adkins JF, Robinson LF, Hines SK, Chai J, Studer AS, Martínez-García A, Chen T, Haug GH. Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age. Proceedings of the National Academy of Sciences of the United States of America. PMID 28298529 DOI: 10.1073/Pnas.1615718114 |
0.767 |
|
| 2017 |
Marconi D, Kopf S, Rafter PA, Sigman DM. Aerobic respiration along isopycnals leads to overestimation of the isotope effect of denitrification in the ocean water column Geochimica Et Cosmochimica Acta. 197: 417-432. DOI: 10.1016/J.Gca.2016.10.012 |
0.572 |
|
| 2017 |
Van Oostende N, Fawcett S, Marconi D, Lueders-Dumont J, Sabadel A, Woodward E, Jönsson B, Sigman D, Ward B. Variation of summer phytoplankton community composition and its relationship to nitrate and regenerated nitrogen assimilation across the North Atlantic Ocean Deep Sea Research Part I: Oceanographic Research Papers. 121: 79-94. DOI: 10.1016/j.dsr.2016.12.012 |
0.635 |
|
| 2017 |
Marconi D, Sigman DM, Casciotti KL, Campbell EC, Alexandra Weigand M, Fawcett SE, Knapp AN, Rafter PA, Ward BB, Haug GH. Tropical Dominance of N2
Fixation in the North Atlantic Ocean Global Biogeochemical Cycles. 31: 1608-1623. DOI: 10.1002/2016Gb005613 |
0.8 |
|
| 2016 |
Frankowiak K, Wang XT, Sigman DM, Gothmann AM, Kitahara MV, Mazur M, Meibom A, Stolarski J. Photosymbiosis and the expansion of shallow-water corals. Science Advances. 2: e1601122. PMID 27847868 DOI: 10.1126/Sciadv.1601122 |
0.75 |
|
| 2016 |
Weigand MA, Foriel J, Barnett B, Oleynik S, Sigman DM. Updates to instrumentation and protocols for isotopic analysis of nitrate by the denitrifier method. Rapid Communications in Mass Spectrometry : Rcm. 30: 1365-83. PMID 27197029 DOI: 10.1002/Rcm.7570 |
0.484 |
|
| 2016 |
Costa KM, McManus JF, Anderson RF, Ren H, Sigman DM, Winckler G, Fleisher MQ, Marcantonio F, Ravelo AC. No iron fertilization in the equatorial Pacific Ocean during the last ice age. Nature. 529: 519-22. PMID 26819045 DOI: 10.1038/Nature16453 |
0.699 |
|
| 2016 |
Altieri KE, Fawcett SE, Peters AJ, Sigman DM, Hastings MG. Marine biogenic source of atmospheric organic nitrogen in the subtropical North Atlantic. Proceedings of the National Academy of Sciences of the United States of America. PMID 26739561 DOI: 10.1073/Pnas.1516847113 |
0.843 |
|
| 2016 |
Wang XT, Sigman DM, Cohen AL, Sinclair DJ, Sherrell RM, Cobb KM, Erler DV, Stolarski J, Kitahara MV, Ren H. Influence of open ocean nitrogen supply on the skeletal δ15N of modern shallow-water scleractinian corals Earth and Planetary Science Letters. 441: 125-132. DOI: 10.1016/J.Epsl.2016.02.032 |
0.835 |
|
| 2016 |
Erler DV, Wang XT, Sigman DM, Scheffers SR, Martínez-García A, Haug GH. Nitrogen isotopic composition of organic matter from a 168 year-old coral skeleton: Implications for coastal nutrient cycling in the Great Barrier Reef Lagoon Earth and Planetary Science Letters. 434: 161-170. DOI: 10.1016/J.Epsl.2015.11.023 |
0.756 |
|
| 2016 |
Rafter PA, Sigman DM. Spatial distribution and temporal variation of nitrate nitrogen and oxygen isotopes in the upper equatorial Pacific Ocean Limnology and Oceanography. 61: 14-31. DOI: 10.1002/Lno.10152 |
0.527 |
|
| 2016 |
Kemeny PC, Weigand MA, Zhang R, Carter BR, Karsh KL, Fawcett SE, Sigman DM. Enzyme-level interconversion of nitrate and nitrite in the fall mixed layer of the Antarctic Ocean Global Biogeochemical Cycles. DOI: 10.1002/2015Gb005350 |
0.85 |
|
| 2015 |
Zhang E, Huang S, Ji Q, Silvernagel M, Wang Y, Ward B, Sigman D, Wysocki G. Nitric Oxide Isotopic Analyzer Based on a Compact Dual-Modulation Faraday Rotation Spectrometer. Sensors (Basel, Switzerland). 15: 25992-26008. PMID 26473876 DOI: 10.3390/S151025992 |
0.579 |
|
| 2015 |
Rohde MM, Granger J, Sigman DM, Lehmann MF. Coupled nitrate N and O stable isotope fractionation by a natural marine plankton consortium Frontiers in Marine Science. 2. DOI: 10.3389/Fmars.2015.00028 |
0.52 |
|
| 2015 |
Wang XT, Sigman DM, Cohen AL, Sinclair DJ, Sherrell RM, Weigand MA, Erler DV, Ren H. Isotopic composition of skeleton-bound organic nitrogen in reef-building symbiotic corals: A new method and proxy evaluation at Bermuda Geochimica Et Cosmochimica Acta. 148: 179-190. DOI: 10.1016/J.Gca.2014.09.017 |
0.796 |
|
| 2015 |
Fawcett SE, Ward BB, Lomas MW, Sigman DM. Vertical decoupling of nitrate assimilation and nitrification in the Sargasso Sea Deep-Sea Research Part I: Oceanographic Research Papers. 103: 64-72. DOI: 10.1016/j.dsr.2015.05.004 |
0.771 |
|
| 2015 |
Erler DV, Wang XT, Sigman DM, Scheffers SR, Shepherd BO. Controls on the nitrogen isotopic composition of shallow water corals across a tropical reef flat transect Coral Reefs. 34: 329-338. DOI: 10.1007/S00338-014-1215-5 |
0.716 |
|
| 2015 |
Ren H, Studer AS, Serno S, Sigman DM, Winckler G, Anderson RF, Oleynik S, Gersonde R, Haug GH. Glacial-to-interglacial changes in nitrate supply and consumption in the subarctic North Pacific from microfossil-bound N isotopes at two trophic levels Paleoceanography. 30: 1217-1232. DOI: 10.1002/2014Pa002765 |
0.73 |
|
| 2015 |
Studer AS, Sigman DM, Martínez-García A, Benz V, Winckler G, Kuhn G, Esper O, Lamy F, Jaccard SL, Wacker L, Oleynik S, Gersonde R, Haug GH. Antarctic Zone nutrient conditions during the last two glacial cycles Paleoceanography. 30: 845-862. DOI: 10.1002/2014Pa002745 |
0.546 |
|
| 2015 |
Fripiat F, Sigman DM, Massé G, Tison JL. High turnover rates indicated by changes in the fixed N forms and their stable isotopes in Antarctic landfast sea ice Journal of Geophysical Research C: Oceans. 120: 3079-3097. DOI: 10.1002/2014Jc010583 |
0.536 |
|
| 2015 |
Smart SM, Fawcett SE, Thomalla SJ, Weigand MA, Reason CJC, Sigman DM. Isotopic evidence for nitrification in the Antarctic winter mixed layer Global Biogeochemical Cycles. 29: 427-445. DOI: 10.1002/2014Gb005013 |
0.725 |
|
| 2015 |
Hain MP, Sigman DM, Higgins JA, Haug GH. The effects of secular calcium and magnesium concentration changes on the thermodynamics of seawater acid/base chemistry: Implications for Eocene and Cretaceous ocean carbon chemistry and buffering Global Biogeochemical Cycles. DOI: 10.1002/2014Gb004986 |
0.72 |
|
| 2014 |
Hayes CT, Martínez-García A, Hasenfratz AP, Jaccard SL, Hodell DA, Sigman DM, Haug GH, Anderson RF. A stagnation event in the deep South Atlantic during the last interglacial period. Science (New York, N.Y.). 346: 1514-7. PMID 25525246 DOI: 10.1126/Science.1256620 |
0.499 |
|
| 2014 |
MartÃnez-GarcÃa A, Sigman DM, Ren H, Anderson RF, Straub M, Hodell DA, Jaccard SL, Eglinton TI, Haug GH. Iron fertilization of the Subantarctic ocean during the last ice age. Science (New York, N.Y.). 343: 1347-50. PMID 24653031 DOI: 10.1126/Science.1246848 |
0.673 |
|
| 2014 |
Zhang X, Sigman DM, Morel FM, Kraepiel AM. Nitrogen isotope fractionation by alternative nitrogenases and past ocean anoxia. Proceedings of the National Academy of Sciences of the United States of America. 111: 4782-7. PMID 24639508 DOI: 10.1073/Pnas.1402976111 |
0.58 |
|
| 2014 |
Treibergs LA, Fawcett SE, Lomas MW, Sigman DM. Nitrogen isotopic response of prokaryotic and eukaryotic phytoplankton to nitrate availability in Sargasso Sea surface waters Limnology and Oceanography. 59: 972-985. DOI: 10.4319/Lo.2014.59.3.0972 |
0.736 |
|
| 2014 |
Marconi D, Alexandra Weigand M, Rafter PA, McIlvin MR, Forbes M, Casciotti KL, Sigman DM. Nitrate isotope distributions on the US GEOTRACES North Atlantic cross-basin section: Signals of polar nitrate sources and low latitude nitrogen cycling Marine Chemistry. DOI: 10.1016/J.Marchem.2015.06.007 |
0.804 |
|
| 2014 |
Karsh KL, Trull TW, Sigman DM, Thompson PA, Granger J. The contributions of nitrate uptake and efflux to isotope fractionation during algal nitrate assimilation Geochimica Et Cosmochimica Acta. 132: 391-412. DOI: 10.1016/J.Gca.2013.09.030 |
0.844 |
|
| 2014 |
Wang XT, Prokopenko MG, Sigman DM, Adkins JF, Robinson LF, Ren H, Oleynik S, Williams B, Haug GH. Isotopic composition of carbonate-bound organic nitrogen in deep-sea scleractinian corals: A new window into past biogeochemical change Earth and Planetary Science Letters. 400: 243-250. DOI: 10.1016/J.Epsl.2014.05.048 |
0.84 |
|
| 2014 |
Hain MP, Sigman DM, Haug GH. Distinct roles of the Southern Ocean and North Atlantic in the deglacial atmospheric radiocarbon decline Earth and Planetary Science Letters. 394: 198-208. DOI: 10.1016/J.Epsl.2014.03.020 |
0.778 |
|
| 2014 |
Morales LV, Granger J, Chang BX, Prokopenko MG, Plessen B, Gradinger R, Sigman DM. Elevated 15N/14N in particulate organic matter, zooplankton, and diatom frustule-bound nitrogen in the ice-covered water column of the Bering Sea eastern shelf Deep-Sea Research Part Ii: Topical Studies in Oceanography. 109: 100-111. DOI: 10.1016/J.Dsr2.2014.05.008 |
0.617 |
|
| 2014 |
Altieri KE, Hastings MG, Peters AJ, Oleynik S, Sigman DM. Isotopic evidence for a marine ammonium source in rainwater at Bermuda Global Biogeochemical Cycles. 28: 1066-1080. DOI: 10.1002/2014Gb004809 |
0.755 |
|
| 2014 |
Fripiat F, Sigman DM, Fawcett SE, Rafter PA, Weigand MA, Tison JL. New insights into sea ice nitrogen biogeochemical dynamics from the nitrogen isotopes Global Biogeochemical Cycles. 28: 115-130. DOI: 10.1002/2013Gb004729 |
0.744 |
|
| 2014 |
Fawcett SE, Lomas MW, Ward BB, Sigman DM. The counterintuitive effect of summer-to-fall mixed layer deepening on eukaryotic new production in the Sargasso Sea Global Biogeochemical Cycles. 28: 86-102. DOI: 10.1002/2013Gb004579 |
0.811 |
|
| 2013 |
Straub M, Sigman DM, Ren H, MartÃnez-GarcÃa A, Meckler AN, Hain MP, Haug GH. Changes in North Atlantic nitrogen fixation controlled by ocean circulation. Nature. 501: 200-3. PMID 23965620 DOI: 10.1038/Nature12397 |
0.865 |
|
| 2013 |
Prokopenko MG, Hirst MB, De Brabandere L, Lawrence DJ, Berelson WM, Granger J, Chang BX, Dawson S, Crane EJ, Chong L, Thamdrup B, Townsend-Small A, Sigman DM. Nitrogen losses in anoxic marine sediments driven by Thioploca-anammox bacterial consortia. Nature. 500: 194-8. PMID 23925243 DOI: 10.1038/Nature12365 |
0.474 |
|
| 2013 |
Meckler AN, Sigman DM, Gibson KA, François R, Martínez-García A, Jaccard SL, Röhl U, Peterson LC, Tiedemann R, Haug GH. Deglacial pulses of deep-ocean silicate into the subtropical North Atlantic Ocean. Nature. 495: 495-8. PMID 23538831 DOI: 10.1038/Nature12006 |
0.53 |
|
| 2013 |
Jaccard SL, Hayes CT, Martínez-García A, Hodell DA, Anderson RF, Sigman DM, Haug GH. Two modes of change in Southern Ocean productivity over the past million years. Science (New York, N.Y.). 339: 1419-23. PMID 23520109 DOI: 10.1126/Science.1227545 |
0.5 |
|
| 2013 |
Morales LV, Sigman DM, Horn MG, Robinson RS. Cleaning methods for the isotopic determination of diatombound nitrogen in non-fossil diatom frustules Limnology and Oceanography: Methods. 11: 101-112. DOI: 10.4319/Lom.2013.11.101 |
0.525 |
|
| 2013 |
Deplazes G, Lückge A, Peterson LC, Timmermann A, Hamann Y, Hughen KA, Röhl U, Laj C, Cane MA, Sigman DM, Haug GH. Links between tropical rainfall and North Atlantic climate during the last glacial period Nature Geoscience. 6: 213-217. DOI: 10.1038/Ngeo1712 |
0.465 |
|
| 2013 |
Meckler AN, Sigman DM, Gibson KA, François R, Martínez-García A, Jaccard SL, Röhl U, Peterson LC, Tiedemann R, Haug GH. Erratum: Corrigendum: Deglacial pulses of deep-ocean silicate into the subtropical North Atlantic Ocean Nature. 505: 574-574. DOI: 10.1038/Nature12906 |
0.368 |
|
| 2013 |
Ren H, Brunelle BG, Sigman DM, Robinson RS. Diagenetic aluminum uptake into diatom frustules and the preservation of diatom-bound organic nitrogen Marine Chemistry. 155: 92-101. DOI: 10.1016/J.Marchem.2013.05.016 |
0.833 |
|
| 2013 |
Studer AS, Ellis KK, Oleynik S, Sigman DM, Haug GH. Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments Geochimica Et Cosmochimica Acta. 120: 179-194. DOI: 10.1016/J.Gca.2013.06.041 |
0.553 |
|
| 2013 |
Hain MP, Sigman DM, Haug GH. The Biological Pump in the Past Treatise On Geochemistry: Second Edition. 8: 485-517. DOI: 10.1016/B978-0-08-095975-7.00618-5 |
0.655 |
|
| 2013 |
Straub M, Tremblay MM, Sigman DM, Studer AS, Ren H, Toggweiler JR, Haug GH. Nutrient conditions in the subpolar North Atlantic during the last glacial period reconstructed from foraminifera-bound nitrogen isotopes Paleoceanography. 28: 79-90. DOI: 10.1002/Palo.20013 |
0.72 |
|
| 2013 |
Altieri KE, Hastings MG, Gobel AR, Peters AJ, Sigman DM. Isotopic composition of rainwater nitrate at Bermuda: The influence of air mass source and chemistry in the marine boundary layer Journal of Geophysical Research: Atmospheres. 118: 11304-11316. DOI: 10.1002/Jgrd.50829 |
0.751 |
|
| 2013 |
Rafter PA, Difiore PJ, Sigman DM. Coupled nitrate nitrogen and oxygen isotopes and organic matter remineralization in the Southern and Pacific Oceans Journal of Geophysical Research: Oceans. 118: 4781-4794. DOI: 10.1002/Jgrc.20316 |
0.858 |
|
| 2013 |
Granger J, Prokopenko MG, Mordy CW, Sigman DM. The proportion of remineralized nitrate on the ice-covered eastern Bering Sea shelf evidenced from the oxygen isotope ratio of nitrate Global Biogeochemical Cycles. 27: 962-971. DOI: 10.1002/Gbc.20075 |
0.546 |
|
| 2013 |
Lawrence KT, Sigman DM, Herbert TD, Riihimaki CA, Bolton CT, Martinez-Garcia A, Rosell-Mele A, Haug GH. Time-transgressive North Atlantic productivity changes upon Northern Hemisphere glaciation Paleoceanography. 28: 740-751. DOI: 10.1002/2013Pa002546 |
0.446 |
|
| 2013 |
Gobel AR, Altieri KE, Peters AJ, Hastings MG, Sigman DM. Insights into anthropogenic nitrogen deposition to the North Atlantic investigated using the isotopic composition of aerosol and rainwater nitrate Geophysical Research Letters. 40: 5977-5982. DOI: 10.1002/2013Gl058167 |
0.758 |
|
| 2012 |
Karsh KL, Granger J, Kritee K, Sigman DM. Eukaryotic assimilatory nitrate reductase fractionates N and O isotopes with a ratio near unity. Environmental Science & Technology. 46: 5727-35. PMID 22534036 DOI: 10.1021/Es204593Q |
0.832 |
|
| 2012 |
Altieri KE, Hastings MG, Peters AJ, Sigman DM. Molecular characterization of water soluble organic nitrogen in marine rainwater by ultra-high resolution electrospray ionization mass spectrometry Atmospheric Chemistry and Physics. 12: 3557-3571. DOI: 10.5194/Acp-12-3557-2012 |
0.737 |
|
| 2012 |
Ren H, Sigman DM, Thunell RC, Prokopenko MG. Nitrogen isotopic composition of planktonic foraminifera from the modern ocean and recent sediments Limnology and Oceanography. 57: 1011-1024. DOI: 10.4319/Lo.2012.57.4.1011 |
0.735 |
|
| 2012 |
Brookshire ENJ, Hedin LO, Newbold JD, Sigman DM, Jackson JK. Sustained losses of bioavailable nitrogen from montane tropical forests Nature Geoscience. 5: 123-126. DOI: 10.1038/Ngeo1372 |
0.342 |
|
| 2012 |
Kwon EY, Hain MP, Sigman DM, Galbraith ED, Sarmiento JL, Toggweiler JR. North Atlantic ventilation of southern-sourced deep water in the glacial ocean Paleoceanography. 27. DOI: 10.1029/2011Pa002211 |
0.787 |
|
| 2012 |
Ren H, Sigman DM, Chen MT, Kao SJ. Elevated foraminifera-bound nitrogen isotopic composition during the last ice age in the South China Sea and its global and regional implications Global Biogeochemical Cycles. 26. DOI: 10.1029/2010Gb004020 |
0.695 |
|
| 2012 |
Rafter PA, Sigman DM, Charles CD, Kaiser J, Haug GH. Subsurface tropical Pacific nitrogen isotopic composition of nitrate: Biogeochemical signals and their transport Global Biogeochemical Cycles. 26. DOI: 10.1029/2010Gb003979 |
0.497 |
|
| 2012 |
Knapp AN, Sigman DM, Kustka AB, Sañudo-Wilhelmy SA, Capone DG. The distinct nitrogen isotopic compositions of low and high molecular weight marine DON Marine Chemistry. 136: 24-33. DOI: 10.1016/J.Marchem.2012.05.001 |
0.569 |
|
| 2012 |
Kritee K, Sigman DM, Granger J, Ward BB, Jayakumar A, Deutsch C. Reduced isotope fractionation by denitrification under conditions relevant to the ocean Geochimica Et Cosmochimica Acta. 92: 243-259. DOI: 10.1016/J.Gca.2012.05.020 |
0.653 |
|
| 2012 |
Studer AS, Martínez-Garcia A, Jaccard SL, Girault FE, Sigman DM, Haug GH. Enhanced stratification and seasonality in the Subarctic Pacific upon Northern Hemisphere Glaciation-New evidence from diatom-bound nitrogen isotopes, alkenones and archaeal tetraethers Earth and Planetary Science Letters. 351: 84-94. DOI: 10.1016/J.Epsl.2012.07.029 |
0.593 |
|
| 2012 |
Silver BJ, Raymond R, Sigman DM, Prokopeko M, Sherwood Lollar B, Lacrampe-Couloume G, Fogel ML, Pratt LM, Lefticariu L, Onstott TC. The origin of NO 3 - and N 2 in deep subsurface fracture water of South Africa Chemical Geology. 294: 51-62. DOI: 10.1016/J.Chemgeo.2011.11.017 |
0.436 |
|
| 2011 |
Wolff C, Haug GH, Timmermann A, Sinninghe Damsté JS, Brauer A, Sigman DM, Cane MA, Verschuren D. Reduced interannual rainfall variability in East Africa during the last ice age. Science (New York, N.Y.). 333: 743-7. PMID 21817050 DOI: 10.1126/Science.1203724 |
0.435 |
|
| 2011 |
Martínez-Garcia A, Rosell-Melé A, Jaccard SL, Geibert W, Sigman DM, Haug GH. Southern Ocean dust-climate coupling over the past four million years. Nature. 476: 312-5. PMID 21814203 DOI: 10.1038/Nature10310 |
0.477 |
|
| 2011 |
Fawcett SE, Lomas MW, Casey JR, Ward BB, Sigman DM. Assimilation of upwelled nitrate by small eukaryotes in the Sargasso Sea Nature Geoscience. 4: 717-722. DOI: 10.1038/Ngeo1265 |
0.817 |
|
| 2011 |
Meckler AN, Ren H, Sigman DM, Gruber N, Plessen B, Schubert CJ, Haug GH. Deglacial nitrogen isotope changes in the Gulf of Mexico: Evidence from bulk sedimentary and foraminifera-bound nitrogen in Orca Basin sediments Paleoceanography. 26. DOI: 10.1029/2011Pa002156 |
0.782 |
|
| 2011 |
Horn MG, Robinson RS, Rynearson TA, Sigman DM. Nitrogen isotopic relationship between diatom-bound and bulk organic matter of cultured polar diatoms Paleoceanography. 26. DOI: 10.1029/2010Pa002080 |
0.473 |
|
| 2011 |
Granger J, Prokopenko MG, Sigman DM, Mordy CW, Morse ZM, Morales LV, Sambrotto RN, Plessen B. Coupled nitrification-denitrification in sediment of the eastern Bering Sea shelf leads to 15N enrichment of fixed N in shelf waters Journal of Geophysical Research: Oceans. 116. DOI: 10.1029/2010Jc006751 |
0.575 |
|
| 2011 |
Hain MP, Sigman DM, Haug GH. Shortcomings of the isolated abyssal reservoir model for deglacial radiocarbon changes in the mid-depth Indo-Pacific Ocean Geophysical Research Letters. 38. DOI: 10.1029/2010Gl046158 |
0.756 |
|
| 2011 |
Knapp AN, Sigman DM, Lipschultz F, Kustka AB, Capone DG. Interbasin isotopic correspondence between upper-ocean bulk DON and subsurface nitrate and its implications for marine nitrogen cycling Global Biogeochemical Cycles. 25. DOI: 10.1029/2010Gb003878 |
0.591 |
|
| 2011 |
Prokopenko MG, Sigman DM, Berelson WM, Hammond DE, Barnett B, Chong L, Townsend-Small A. Denitrification in anoxic sediments supported by biological nitrate transport Geochimica Et Cosmochimica Acta. 75: 7180-7199. DOI: 10.1016/J.Gca.2011.09.023 |
0.535 |
|
| 2010 |
Sigman DM, Hain MP, Haug GH. The polar ocean and glacial cycles in atmospheric CO(2) concentration. Nature. 466: 47-55. PMID 20596012 DOI: 10.1038/Nature09149 |
0.778 |
|
| 2010 |
Difiore PJ, Sigman DM, Karsh KL, Trull TW, Dunbar RB, Robinson RS. Poleward decrease in the isotope effect of nitrate assimilation across the Southern Ocean Geophysical Research Letters. 37. DOI: 10.1029/2010Gl044090 |
0.832 |
|
| 2010 |
Hain MP, Sigman DM, Haug GH. Carbon dioxide effects of Antarctic stratification, North Atlantic Intermediate Water formation, and subantarctic nutrient drawdown during the last ice age: Diagnosis and synthesis in a geochemical box model Global Biogeochemical Cycles. 24. DOI: 10.1029/2010Gb003790 |
0.758 |
|
| 2010 |
Brunelle BG, Sigman DM, Jaccard SL, Keigwin LD, Plessen B, Schettler G, Cook MS, Haug GH. Glacial/interglacial changes in nutrient supply and stratification in the western subarctic North Pacific since the penultimate glacial maximum Quaternary Science Reviews. 29: 2579-2590. DOI: 10.1016/J.Quascirev.2010.03.010 |
0.839 |
|
| 2010 |
Jaccard SL, Galbraith ED, Sigman DM, Haug GH. A pervasive link between Antarctic ice core and subarctic Pacific sediment records over the past 800 kyrs Quaternary Science Reviews. 29: 206-212. DOI: 10.1016/J.Quascirev.2009.10.007 |
0.455 |
|
| 2010 |
Knapp AN, Hastings MG, Sigman DM, Lipschultz F, Galloway JN. The flux and isotopic composition of reduced and total nitrogen in Bermuda rain Marine Chemistry. 120: 83-89. DOI: 10.1016/J.Marchem.2008.08.007 |
0.795 |
|
| 2010 |
Granger J, Sigman DM, Rohde MM, Maldonado MT, Tortell PD. N and O isotope effects during nitrate assimilation by unicellular prokaryotic and eukaryotic plankton cultures Geochimica Et Cosmochimica Acta. 74: 1030-1040. DOI: 10.1016/J.Gca.2009.10.044 |
0.416 |
|
| 2010 |
Sigman DM, Karsh KL, Casciotti KL. Nitrogen Isotopes in the Ocean Encyclopedia of Ocean Sciences. 40-54. DOI: 10.1016/B978-012374473-9.00632-9 |
0.856 |
|
| 2009 |
Granger J, Sigman DM. Removal of nitrite with sulfamic acid for nitrate N and O isotope analysis with the denitrifier method. Rapid Communications in Mass Spectrometry : Rcm. 23: 3753-62. PMID 19908214 DOI: 10.1002/Rcm.4307 |
0.484 |
|
| 2009 |
Ren H, Sigman DM, Meckler AN, Plessen B, Robinson RS, Rosenthal Y, Haug GH. Foraminiferal isotope evidence of reduced nitrogen fixation in the ice age Atlantic Ocean. Science (New York, N.Y.). 323: 244-8. PMID 19095896 DOI: 10.1126/Science.1165787 |
0.737 |
|
| 2009 |
Haug GH, Sigman DM. Palaeoceanography: Polar twins Nature Geoscience. 2: 91-92. DOI: 10.1038/Ngeo423 |
0.467 |
|
| 2009 |
DiFiore PJ, Sigman DM, Dunbar RB. Upper ocean nitrogen fluxes in the Polar Antarctic Zone: Constraints from the nitrogen and oxygen isotopes of nitrate Geochemistry, Geophysics, Geosystems. 10. DOI: 10.1029/2009Gc002468 |
0.868 |
|
| 2009 |
Sigman DM, DiFiore PJ, Hain MP, Deutsch C, Karl DM. Sinking organic matter spreads the nitrogen isotope signal of pelagic denitrification in the North Pacific Geophysical Research Letters. 36. DOI: 10.1029/2008Gl035784 |
0.855 |
|
| 2009 |
Jaccard SL, Galbraith ED, Sigman DM, Haug GH, Francois R, Pedersen TF, Dulski P, Thierstein HR. Subarctic Pacific evidence for a glacial deepening of the oceanic respired carbon pool Earth and Planetary Science Letters. 277: 156-165. DOI: 10.1016/J.Epsl.2008.10.017 |
0.501 |
|
| 2009 |
De Pol-Holz R, Robinson RS, Hebbeln D, Sigman DM, Ulloa O. Controls on sedimentary nitrogen isotopes along the Chile margin Deep-Sea Research Part Ii: Topical Studies in Oceanography. 56: 1100-1112. DOI: 10.1016/J.Dsr2.2008.09.014 |
0.63 |
|
| 2009 |
Sigman DM, DiFiore PJ, Hain MP, Deutsch C, Wang Y, Karl DM, Knapp AN, Lehmann MF, Pantoja S. The dual isotopes of deep nitrate as a constraint on the cycle and budget of oceanic fixed nitrogen Deep-Sea Research Part I: Oceanographic Research Papers. 56: 1419-1439. DOI: 10.1016/j.dsr.2009.04.007 |
0.839 |
|
| 2008 |
Granger J, Sigman DM, Lehmann MF, Tortell PD. Nitrogen and oxygen isotope fractionation during dissimilatory nitrate reduction by denitrifying bacteria Limnology and Oceanography. 53: 2533-2545. DOI: 10.4319/Lo.2008.53.6.2533 |
0.515 |
|
| 2008 |
Jang YH, Khim BK, Shin HC, Sigman DM, Wang Y, Hong CS. Variation of nitrate concentrations and δ15N values of Seawater in the Drake Passage, Antarctic Ocean Ocean and Polar Research. 30: 407-418. DOI: 10.4217/Opr.2008.30.4.407 |
0.526 |
|
| 2008 |
de Boer AM, Toggweiler JR, Sigman DM. Atlantic dominance of the meridional overturning circulation Journal of Physical Oceanography. 38: 435-450. DOI: 10.1175/2007Jpo3731.1 |
0.394 |
|
| 2008 |
Brauer A, Haug GH, Dulski P, Sigman DM, Negendank JFW. An abrupt wind shift in western Europe at the onset of the Younger Dryas cold period Nature Geoscience. 1: 520-523. DOI: 10.1038/Ngeo263 |
0.428 |
|
| 2008 |
Galbraith ED, Kienast M, Jaccard SL, Pedersen TF, Brunelle BD, Sigman DM, Kiefer T. Consistent relationship between global climate and surface nitrate utilization in the western subarctic Pacific throughout the last 500 ka Paleoceanography. 23. DOI: 10.1029/2007Pa001518 |
0.562 |
|
| 2008 |
Knapp AN, DiFiore PJ, Deutsch C, Sigman DM, Lipschultz F. Nitrate isotopic composition between Bermuda and Puerto Rico: Implications for N2 fixation in the Atlantic Ocean Global Biogeochemical Cycles. 22. DOI: 10.1029/2007Gb003107 |
0.862 |
|
| 2008 |
Robinson RS, Sigman DM. Nitrogen isotopic evidence for a poleward decrease in surface nitrate within the ice age Antarctic Quaternary Science Reviews. 27: 1076-1090. DOI: 10.1016/J.Quascirev.2008.02.005 |
0.603 |
|
| 2007 |
Galbraith ED, Jaccard SL, Pedersen TF, Sigman DM, Haug GH, Cook M, Southon JR, Francois R. Carbon dioxide release from the North Pacific abyss during the last deglaciation. Nature. 449: 890-3. PMID 17943127 DOI: 10.1038/Nature06227 |
0.476 |
|
| 2007 |
Houlton BZ, Sigman DM, Schuur EA, Hedin LO. A climate-driven switch in plant nitrogen acquisition within tropical forest communities. Proceedings of the National Academy of Sciences of the United States of America. 104: 8902-6. PMID 17502607 DOI: 10.1073/Pnas.0609935104 |
0.329 |
|
| 2007 |
Kaiser J, Hastings MG, Houlton BZ, Röckmann T, Sigman DM. Triple oxygen isotope analysis of nitrate using the denitrifier method and thermal decomposition of N2O. Analytical Chemistry. 79: 599-607. PMID 17222025 DOI: 10.1021/Ac061022S |
0.699 |
|
| 2007 |
Deutsch C, Sarmiento JL, Sigman DM, Gruber N, Dunne JP. Spatial coupling of nitrogen inputs and losses in the ocean. Nature. 445: 163-7. PMID 17215838 DOI: 10.1038/Nature05392 |
0.521 |
|
| 2007 |
Yancheva G, Nowaczyk NR, Mingram J, Dulski P, Schettler G, Negendank JF, Liu J, Sigman DM, Peterson LC, Haug GH. Influence of the intertropical convergence zone on the East Asian monsoon. Nature. 445: 74-7. PMID 17203059 DOI: 10.1038/Nature05431 |
0.429 |
|
| 2007 |
Savarino J, Kaiser J, Morin S, Sigman DM, Thiemens MH. Nitrogen and oxygen isotopic constraints on the origin of atmospheric nitrate in coastal Antarctica Atmospheric Chemistry and Physics. 7: 1925-1945. DOI: 10.5194/Acp-7-1925-2007 |
0.485 |
|
| 2007 |
Yancheva G, Nowaczyk NR, Mingram J, Dulski P, Schettler G, Negendank JFW, Liu J, Sigman DM, Peterson LC, Haug GH. Yancheva et al. reply Nature. 450: E8-E9. DOI: 10.1038/Nature06409 |
0.315 |
|
| 2007 |
Meckler AN, Haug GH, Sigman DM, Plessen B, Peterson LC, Thierstein HR. Detailed sedimentary N isotope records from Cariaco Basin for Terminations I and V: Local and global implications Global Biogeochemical Cycles. 21: n/a-n/a. DOI: 10.1029/2006Gb002893 |
0.552 |
|
| 2007 |
de Boer AM, Sigman DM, Toggweiler JR, Russell JL. Effect of global ocean temperature change on deep ocean ventilation Paleoceanography. 22. DOI: 10.1029/2005Pa001242 |
0.415 |
|
| 2007 |
Brunelle BG, Sigman DM, Cook MS, Keigwin LD, Haug GH, Plessen B, Schettler G, Jaccard SL. Evidence from diatom-bound nitrogen isotopes for subarctic Pacific stratification during the last ice age and a link to North Pacific denitrification changes Paleoceanography. 22. DOI: 10.1029/2005Pa001205 |
0.862 |
|
| 2007 |
Lehmann MF, Sigman DM, McCorkle DC, Granger J, Hoffmann S, Cane G, Brunelle BG. The distribution of nitrate 15N/14N in marine sediments and the impact of benthic nitrogen loss on the isotopic composition of oceanic nitrate Geochimica Et Cosmochimica Acta. 71: 5384-5404. DOI: 10.1016/J.Gca.2007.07.025 |
0.864 |
|
| 2006 |
Houlton BZ, Sigman DM, Hedin LO. Isotopic evidence for large gaseous nitrogen losses from tropical rainforests. Proceedings of the National Academy of Sciences of the United States of America. 103: 8745-50. PMID 16728510 DOI: 10.1073/Pnas.0510185103 |
0.533 |
|
| 2006 |
Granger J, Sigman DM, Prokopenko MG, Lehmann MF, Tortell PD. A method for nitrite removal in nitrate N and O isotope analyses Limnology and Oceanography: Methods. 4: 206-212. DOI: 10.4319/Lom.2006.4.205 |
0.454 |
|
| 2006 |
DiFiore PJ, Sigman DM, Trull TW, Lourey MJ, Karsh K, Cane G, Ho R. Nitrogen isotope constraints on subantarctic biogeochemistry Journal of Geophysical Research: Oceans. 111. DOI: 10.1029/2005Jc003216 |
0.858 |
|
| 2006 |
Sigman DM, Granger J, DiFiore PJ, Lehmann MF, Ho R, Cane G, van Geen A. Correction to “Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin” Global Biogeochemical Cycles. 20: n/a-n/a. DOI: 10.1029/2005Gb002682 |
0.822 |
|
| 2005 |
Jaccard SL, Haug GH, Sigman DM, Pedersen TF, Thierstein HR, Röhl U. Glacial/interglacial changes in subarctic north pacific stratification. Science (New York, N.Y.). 308: 1003-6. PMID 15890879 DOI: 10.1126/Science.1108696 |
0.466 |
|
| 2005 |
Haug GH, Ganopolski A, Sigman DM, Rosell-Mele A, Swann GE, Tiedemann R, Jaccard SL, Bollmann J, Maslin MA, Leng MJ, Eglinton G. North Pacific seasonality and the glaciation of North America 2.7 million years ago. Nature. 433: 821-5. PMID 15729332 DOI: 10.1038/Nature03332 |
0.513 |
|
| 2005 |
Lehmann MF, Sigman DM, McCorkle DC, Brunelle BG, Hoffmann S, Kienast M, Cane G, Clement J. Origin of the deep Bering Sea nitrate deficit: Constraints from the nitrogen and oxygen isotopic composition of water column nitrate and benthic nitrate fluxes Global Biogeochemical Cycles. 19. DOI: 10.1029/2005Gb002508 |
0.854 |
|
| 2005 |
Hastings MG, Sigman DM, Steig EJ. Glacial/interglacial changes in the isotopes of nitrate from the Greenland Ice Sheet Project 2 (GISP2) ice core Global Biogeochemical Cycles. 19. DOI: 10.1029/2005Gb002502 |
0.817 |
|
| 2005 |
Sigman DM, Granger J, DiFiore PJ, Lehmann MM, Ho R, Cane G, van Geen A. Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin Global Biogeochemical Cycles. 19. DOI: 10.1029/2005Gb002458 |
0.858 |
|
| 2005 |
Robinson RS, Sigman DM, DiFiore PJ, Rohde MM, Mashiotta TA, Lea DW. Diatom-bound 15N/14N: New support for enhanced nutrient consumption in the ice age subantarctic Paleoceanography. 20: 1-14. DOI: 10.1029/2004Pa001114 |
0.865 |
|
| 2005 |
Knapp AN, Sigman DM, Lipschultz F. N isotopic composition of dissolved organic nitrogen and nitrate at the Bermuda Atlantic Time-series study site Global Biogeochemical Cycles. 19: 1-15. DOI: 10.1029/2004Gb002320 |
0.555 |
|
| 2004 |
Sigman DM, Jaccard SL, Haug GH. Polar ocean stratification in a cold climate. Nature. 428: 59-63. PMID 14999278 DOI: 10.1038/Nature02357 |
0.482 |
|
| 2004 |
Granger J, Sigman DM, Needoba JA, Harrison PJ. Coupled nitrogen and oxygen isotope fractionation of nitrate during assimilation by cultures of marine phytoplankton Limnology and Oceanography. 49: 1763-1773. DOI: 10.4319/Lo.2004.49.5.1763 |
0.537 |
|
| 2004 |
Needoba JA, Sigman DM, Harrison PJ. The mechanism of isotope fractionation during algal nitrate assimilation as illuminated by the 15N/14N of intracellular nitrate Journal of Phycology. 40: 517-522. DOI: 10.1111/J.1529-8817.2004.03172.X |
0.522 |
|
| 2004 |
Hastings MG, Steig EJ, Sigman DM. Seasonal variations in N and O isotopes of nitrate in snow at Summit, Greenland: Implications for the study of nitrate in snow and ice cores Journal of Geophysical Research D: Atmospheres. 109: D20306 1-11. DOI: 10.1029/2004Jd004991 |
0.815 |
|
| 2004 |
Robinson RS, Brunelle BG, Sigman DM. Revisiting nutrient utilization in the glacial Antarctic: Evidence from a new method for diatom-bound N isotopic analysis Paleoceanography. 19: PA3001 1-13. DOI: 10.1029/2003Pa000996 |
0.829 |
|
| 2004 |
Deutsch C, Sigman DM, Thunell RC, Meckler AN, Haug GH. Isotopic constraints on glacial/interglacial changes in the oceanic nitrogen budget Global Biogeochemical Cycles. 18: 1-22. DOI: 10.1029/2003Gb002189 |
0.601 |
|
| 2004 |
Thunell RC, Sigman DM, Muller-Karger F, Astor Y, Varela R. Nitrogen isotope dynamics of the Cariaco Basin, Venezuela Global Biogeochemical Cycles. 18: GB3001 1-13. DOI: 10.1029/2003Gb002185 |
0.619 |
|
| 2004 |
Lehmann MF, Sigman DM, Berelson WM. Coupling the 15N/14N and 18O/ 16O of nitrate as a constraint on benthic nitrogen cycling Marine Chemistry. 88: 1-20. DOI: 10.1016/J.Marchem.2004.02.001 |
0.525 |
|
| 2004 |
Needoba JA, Sigman DM, Harrison PJ. The mechanism of isotope fractionation during algal nitrate assimilation as illuminated by the 15N/14N of intracellular nitrate Journal of Phycology. 40: 517-522. |
0.422 |
|
| 2003 |
Haug GH, Günther D, Peterson LC, Sigman DM, Hughen KA, Aeschlimann B. Climate and the collapse of Maya civilization. Science (New York, N.Y.). 299: 1731-5. PMID 12637744 DOI: 10.1126/Science.1080444 |
0.403 |
|
| 2003 |
Karsh KL, Trull TW, Lourey MJ, Sigman DM. Relationship of nitrogen isotope fractionation to phytoplankton size and iron availability during the Southern Ocean Iron RElease Experiment (SOIREE) Limnology and Oceanography. 48: 1058-1068. DOI: 10.4319/Lo.2003.48.3.1058 |
0.838 |
|
| 2003 |
Haug GH, Günther D, Peterson L, Sigman D, Hughen K, Aeschlimann B. Climate and the Maya Pages News. 11: 28-30. DOI: 10.22498/Pages.11.2-3.28 |
0.319 |
|
| 2003 |
Casciotti KL, Sigman DM, Ward BB. Linking diversity and stable isotope fractionation in ammonia-oxidizing bacteria Geomicrobiology Journal. 20: 335-353. DOI: 10.1080/01490450303895 |
0.609 |
|
| 2003 |
Hastings MG, Sigman DM, Lipschultz F. Isotopic evidence for source changes of nitrate in rain at Bermuda Journal of Geophysical Research D: Atmospheres. 108: ACH 22-1 - ACH 22-12. DOI: 10.1029/2003Jd003789 |
0.757 |
|
| 2003 |
Sigman DM, Lehman SJ, Oppo DW. Evaluating mechanisms of nutrient depletion and 13C enrichment in the intermediate-depth Atlantic during the last ice age Paleoceanography. 18: 17-1. DOI: 10.1029/2002Pa000818 |
0.48 |
|
| 2003 |
Sigman DM, Robinson R, Knapp AN, Van Geen A, McCorkle DC, Brandes JA, Thunell RC. Distinguishing between water column and sedimentary denitrification in the Santa Barbara Basin using the stable isotopes of nitrate Geochemistry, Geophysics, Geosystems. 4. DOI: 10.1029/2002Gc000384 |
0.614 |
|
| 2003 |
Lourey MJ, Trull TW, Sigman DM. Sensitivity of δ15N of nitrate, surface suspended and deep sinking particulate nitrogen to seasonal nitrate depletion in the Southern Ocean Global Biogeochemical Cycles. 17: 7-1. DOI: 10.1029/2002Gb001973 |
0.573 |
|
| 2003 |
Saito MA, Sigman DM, Morel FMM. The bioinorganic chemistry of the ancient ocean: The co-evolution of cyanobacterial metal requirements and biogeochemical cycles at the Archean-Proterozoic boundary? Inorganica Chimica Acta. 356: 308-318. DOI: 10.1016/S0020-1693(03)00442-0 |
0.305 |
|
| 2002 |
Casciotti KL, Sigman DM, Hastings MG, Böhlke JK, Hilkert A. Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method. Analytical Chemistry. 74: 4905-12. PMID 12380811 DOI: 10.1021/Ac020113W |
0.713 |
|
| 2002 |
Tortell P, DiTullio G, Sigman D, Morel F. CO2 effects on taxonomic composition and nutrient utilization in an Equatorial Pacific phytoplankton assemblage Marine Ecology Progress Series. 236: 37-43. DOI: 10.3354/Meps236037 |
0.409 |
|
| 2002 |
Carrillo JH, Hastings MG, Sigman DM, Huebert BJ. Atmospheric deposition of inorganic and organic nitrogen and base cations in Hawaii Global Biogeochemical Cycles. 16: 24-1. DOI: 10.1029/2002Gb001892 |
0.752 |
|
| 2002 |
Brzezinski MA, Pride CJ, Franck VM, Sigman DM, Sarmiento JL, Matsumoto K, Gruber N, Rau GH, Coale KH. A switch from Si(OH)4 to NO- 3 depletion in the glacial Southern Ocean Geophysical Research Letters. 29: 5-1 - 5-4. DOI: 10.1029/2001Gl014349 |
0.356 |
|
| 2002 |
Karl D, Michaels A, Bergman B, Capone D, Carpenter E, Letelier R, Lipschultz F, {Paerl H, Sigman D, Stal L. Biogeochemistry. 57: 47-98. DOI: 10.1023/A:1015798105851 |
0.555 |
|
| 2002 |
Pantoja S, Repeta DJ, Sachs JP, Sigman DM. Stable isotope constraints on the nitrogen cycle of the Mediterranean Sea water column Deep-Sea Research Part I: Oceanographic Research Papers. 49: 1609-1621. DOI: 10.1016/S0967-0637(02)00066-3 |
0.384 |
|
| 2001 |
Sigman DM, Casciotti KL, Andreani M, Barford C, Galanter M, Böhlke JK. A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater. Analytical Chemistry. 73: 4145-53. PMID 11569803 DOI: 10.1021/ac010088e |
0.358 |
|
| 2001 |
Haug GH, Hughen KA, Sigman DM, Peterson LC, Röhl U. Southward migration of the intertropical convergence zone through the Holocene. Science (New York, N.Y.). 293: 1304-8. PMID 11509727 DOI: 10.1126/Science.1059725 |
0.446 |
|
| 2001 |
Sigman DM, Boyle EA. Antarctic stratification and glacial CO2 Nature. 412: 606-606. DOI: 10.1038/35088132 |
0.308 |
|
| 2000 |
Sigman DM, Boyle EA. Glacial/interglacial variations in atmospheric carbon dioxide. Nature. 407: 859-69. PMID 11057657 DOI: 10.1038/35038000 |
0.478 |
|
| 2000 |
Sigman DM, Altabet MA, McCorkle DC, Francois R, Fischer G. The δ15N of nitrate in the Southern Ocean: Nitrogen cycling and circulation in the ocean interior Journal of Geophysical Research. 105: 19599-19614. DOI: 10.1029/2000Jc000265 |
0.74 |
|
| 2000 |
Sigman DM, Altabet MA, McCorkle DC, Francois R, Fischer G. The δ15N of nitrate in the Southern Ocean: Nitrogen cycling and circulation in the ocean interior Journal of Geophysical Research: Oceans. 105: 19599-19614. |
0.443 |
|
| 1999 |
Haug GH, Sigman DM, Tiedemann R, Pedersen TF, Sarnthein M. Onset of permanent stratification in the subarctic Pacific Ocean Nature. 401: 779-782. DOI: 10.1038/44550 |
0.527 |
|
| 1999 |
Pride C, Thunell R, Sigman D, Keigwin L, Altabet M, Tappa E. Nitrogen isotopic variations in the Gulf of California since the Last Deglaciation: Response to global climate change Paleoceanography. 14: 397-409. DOI: 10.1029/1999Pa900004 |
0.713 |
|
| 1999 |
Sigman DM, Altabet MA, McCorkle DC, Francois R, Fischer G. The δ15N of nitrate in the southern ocean: Consumption of nitrate in surface waters Global Biogeochemical Cycles. 13: 1149-1166. DOI: 10.1029/1999Gb900038 |
0.71 |
|
| 1999 |
Sigman DM, Altabet MA, Francois R, McCorkle DC, Gaillard JF. The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments Paleoceanography. 14: 118-134. DOI: 10.1029/1998Pa900018 |
0.776 |
|
| 1999 |
Altabet MA, Pilskaln C, Thunell R, Pride C, Sigman D, Chavez F, Francois R. The nitrogen isotope biogeochemistry of sinking particles from the margin of the Eastern North Pacific Deep Sea Research Part I: Oceanographic Research Papers. 46: 655-679. DOI: 10.1016/S0967-0637(98)00084-3 |
0.612 |
|
| 1998 |
Hughen KA, Overpeck JT, Lehman SJ, Kashgarian M, Southon J, Peterson LC, Alley R, Sigman DM. Deglacial changes in ocean circulation from an extended radiocarbon calibration Nature. 391: 65-68. DOI: 10.1038/34150 |
0.476 |
|
| 1998 |
Haug GH, Pedersen TF, Sigman DM, Calvert SE, Nielsen B, Peterson LC. Glacial/interglacial variations in production and nitrogen fixation in the Cariaco Basin during the last 580 kyr Paleoceanography. 13: 427-432. DOI: 10.1029/98Pa01976 |
0.608 |
|
| 1998 |
Sigman DM, McCorkle DC, Martin WR. The calcite lysocline as a constraint on glacial/interglacial low‐latitude production changes Global Biogeochemical Cycles. 12: 409-427. DOI: 10.1029/98Gb01184 |
0.446 |
|
| 1998 |
Holmes RM, McClelland JW, Sigman DM, Fry B, Peterson BJ. Measuring 15N-NH4/+ in marine, estuarine and fresh waters: An adaptation of the ammonia diffusion method for samples with low ammonium concentrations Marine Chemistry. 60: 235-243. DOI: 10.1016/S0304-4203(97)00099-6 |
0.453 |
|
| 1997 |
François R, Altabett MA, Yu EF, Sigman DM, Bacon MP, Frank M, Bohrmann G, Bareille G, Labeyrie LD. Contribution of Southern Ocean surface-water stratification to low atmospheric CO2 concentrations during the last glacial period Nature. 389: 929-935. DOI: 10.1038/40073 |
0.485 |
|
| 1997 |
Webb RS, Rind DH, Lehman SJ, Healy RJ, Sigman D. Influence of ocean heat transport on the climate of the Last Glacial Maximum Nature. 385: 695-699. DOI: 10.1038/385695A0 |
0.421 |
|
| 1997 |
Sigman DM, Altabet MA, Michener R, McCorkle DC, Fry B, Holmes RM. Natural abundance-level measurement of the nitrogen isotopic composition of oceanic nitrate: An adaptation of the ammonia diffusion method Marine Chemistry. 57: 227-242. DOI: 10.1016/S0304-4203(97)00009-1 |
0.695 |
|
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