| Climate-driven trends in contemporary ocean productivity MJ Behrenfeld, RT O’Malley, DA Siegel, CR McClain, JL Sarmiento, ... Nature 444 (7120), 752-755, 2006 | 2763 | 2006 |
| The role of nitrogen fixation in biogeochemical cycling in the subtropical North Pacific Ocean D Karl, R Letelier, L Tupas, J Dore, J Christian, D Hebel Nature 388 (6642), 533-538, 1997 | 1109 | 1997 |
| Ocean color chlorophyll a algorithms for SeaWiFS, OC2, and OC4: Version 4 JE O’Reilly, S Maritorena, DA Siegel, MC O’Brien, D Toole, BG Mitchell, ... SeaWiFS postlaunch calibration and validation analyses, Part 3, 9-23, 2000 | 992 | 2000 |
| Dinitrogen fixation in the world’s oceans D Karl, A Michaels, B Bergman, D Capone, E Carpenter, R Letelier, ... The nitrogen cycle at regional to global scales, 47-98, 2002 | 874 | 2002 |
| Seasonal and interannual variability in primary production and particle flux at Station ALOHA DM Karl, JR Christian, JE Dore, DV Hebel, RM Letelier, LM Tupas, ... Deep Sea Research Part II: Topical Studies in Oceanography 43 (2-3), 539-568, 1996 | 500 | 1996 |
| Microbial oceanography of anoxic oxygen minimum zones O Ulloa, DE Canfield, EF DeLong, RM Letelier, FJ Stewart Proceedings of the National Academy of Sciences 109 (40), 15996-16003, 2012 | 465 | 2012 |
| Temporal variability of phytoplankton community structure based on pigment analysis RM Letelier, RR Bidigare, DV Hebel, M Ondrusek, CD Winn, DM Karl Limnology and Oceanography 38 (7), 1420-1437, 1993 | 455 | 1993 |
| Long-term changes in plankton community structure and productivity in the North Pacific Subtropical Gyre: The domain shift hypothesis DM Karl, RR Bidigare, RM Letelier Deep Sea Research Part II: Topical Studies in Oceanography 48 (8-9), 1449-1470, 2001 | 417 | 2001 |
| Database of diazotrophs in global ocean: abundance, biomass and nitrogen fixation rates YW Luo, SC Doney, LA Anderson, M Benavides, I Berman-Frank, A Bode, ... Earth System Science Data 4 (1), 47-73, 2012 | 396 | 2012 |
| Ecological nitrogen-to-phosphorus stoichiometry at station ALOHA DM Karl, KM Björkman, JE Dore, L Fujieki, DV Hebel, T Houlihan, ... Deep Sea Research Part II: Topical Studies in Oceanography 48 (8-9), 1529-1566, 2001 | 372 | 2001 |
| Ecosystem changes in the North Pacific subtropical gyre attributed to the 1991–92 El Nino DM Karl, R Letelier, D Hebel, L Tupas, J Dore, J Christian, C Winn Nature 373 (6511), 230-234, 1995 | 346 | 1995 |
| Light driven seasonal patterns of chlorophyll and nitrate in the lower euphotic zone of the North Pacific Subtropical Gyre RM Letelier, DM Karl, MR Abbott, RR Bidigare Limnology and Oceanography 49 (2), 508-519, 2004 | 322 | 2004 |
| Predictable and efficient carbon sequestration in the North Pacific Ocean supported by symbiotic nitrogen fixation DM Karl, MJ Church, JE Dore, RM Letelier, C Mahaffey Proceedings of the National Academy of Sciences 109 (6), 1842-1849, 2012 | 313 | 2012 |
| An analysis of chlorophyll fluorescence algorithms for the Moderate Resolution Imaging Spectrometer (MODIS) RM Letelier, MR Abbott Remote Sensing of Environment 58 (2), 215-223, 1996 | 298 | 1996 |
| The role of dissolved organic matter release in the productivity of the oligotrophic North Pacific Ocean DM Karl, DV Hebel, K Björkman, RM Letelier Limnology and Oceanography 43 (6), 1270-1286, 1998 | 273 | 1998 |
| Trichodesmium Blooms and New Nitrogen in the North Pacific Gyre DM Karl, R Letelier, DV Hebel, DF Bird, CD Winn Marine pelagic cyanobacteria: Trichodesmium and other diazotrophs, 219-237, 1992 | 272 | 1992 |
| Role of Trichodesmium spp. in the productivity of the subtropical North Pacific Ocean RM Letelier, DM Karl Marine Ecology Progress Series 133, 263-273, 1996 | 254 | 1996 |
| Simulating the global distribution of nitrogen isotopes in the ocean CJ Somes, A Schmittner, ED Galbraith, MF Lehmann, MA Altabet, ... Global Biogeochemical Cycles 24 (4), 2010 | 251 | 2010 |
| Physical forcing of nitrogen fixation and diazotroph community structure in the North Pacific subtropical gyre MJ Church, C Mahaffey, RM Letelier, R Lukas, JP Zehr, DM Karl Global Biogeochemical Cycles 23 (2), 2009 | 230 | 2009 |
| Summer phytoplankton blooms in the oligotrophic North Pacific Subtropical Gyre: Historical perspective and recent observations JE Dore, RM Letelier, MJ Church, R Lukas, DM Karl Progress in Oceanography 76 (1), 2-38, 2008 | 224 | 2008 |
David M. KarlUniversity of HawaiiVerified email at hawaii.edu
