Works by Frey, Karen E.

Results: 36

Assessment of Empirical and Semi-Analytical Algorithms Using MODIS-Aqua for Representing In-Situ Chromophoric Dissolved Organic Matter (CDOM) in the Bering, Chukchi, and Western Beaufort Seas of the Pacific Arctic Region.

Published in:

Remote Sensing, 2021, v. 13, n. 18, p. 3673, doi. 10.3390/rs13183673

By:

Santiago, Melishia I.;
Frey, Karen E.

Publication type:

Article

Change Points Detected in Decadal and Seasonal Trends of Outlet Glacier Terminus Positions across West Greenland.

Published in:

Remote Sensing, 2020, v. 12, n. 21, p. 3651, doi. 10.3390/rs12213651

By:

York, Ashley V.;
Frey, Karen E.;
Jamali, Sadegh;
Das, Sarah B.

Publication type:

Article

Phytoplankton bloom stages estimated from chlorophyll pigment proportions suggest delayed summer production in low sea ice years in the northern Bering Sea.

Published in:

PLoS ONE, 2022, v. 17, n. 7, p. 1, doi. 10.1371/journal.pone.0267586

By:

Gaffey, Clare B.;
Frey, Karen E.;
Cooper, Lee W.;
Grebmeier, Jacqueline M.

Publication type:

Article

Satellite‐based estimates of Antarctic surface meltwater fluxes.

Published in:

Geophysical Research Letters, 2013, v. 40, n. 23, p. 6148, doi. 10.1002/2013GL058138

By:

Trusel, Luke D.;
Frey, Karen E.;
Das, Sarah B.;
Munneke, Peter Kuipers;
van den Broeke, Michiel R.

Publication type:

Article

The spatial distribution of solar radiation under a melting Arctic sea ice cover.

Published in:

Geophysical Research Letters, 2011, v. 38, n. 22, p. n/a, doi. 10.1029/2011GL049421

By:

Frey, Karen E.;
Perovich, Donald K.;
Light, Bonnie

Publication type:

Article

Peatlands Versus Permafrost: Landscape Features as Drivers of Dissolved Organic Matter Composition in West Siberian Rivers.

Published in:

Journal of Geophysical Research. Biogeosciences, 2024, v. 129, n. 2, p. 1, doi. 10.1029/2023JG007797

By:

Starr, Sommer F.;
Frey, Karen E.;
Smith, Laurence C.;
Kellerman, Anne M.;
McKenna, Amy M.;
Spencer, Robert G. M.

Publication type:

Article

Trapped Under Ice: Spatial and Seasonal Dynamics of Dissolved Organic Matter Composition in Tundra Lakes.

Published in:

Journal of Geophysical Research. Biogeosciences, 2022, v. 127, n. 4, p. 1, doi. 10.1029/2021JG006578

By:

Kurek, Martin R.;
Frey, Karen E.;
Guillemette, François;
Podgorski, David C.;
Townsend‐Small, Amy;
Arp, Christopher D.;
Kellerman, Anne M.;
Spencer, Robert G. M.

Publication type:

Article

Seasonal and latitudinal variations in sea ice algae deposition in the Northern Bering and Chukchi Seas determined by algal biomarkers.

Published in:

PLoS ONE, 2020, v. 15, n. 4, p. 1, doi. 10.1371/journal.pone.0231178

By:

Koch, Chelsea Wegner;
Cooper, Lee W.;
Lalande, Catherine;
Brown, Thomas A.;
Frey, Karen E.;
Grebmeier, Jacqueline M.

Publication type:

Article

Applying landscape fragmentation analysis to icescape environments: potential impacts for the Pacific walrus (Odobenus rosmarus divergens).

Published in:

Polar Research, 2022, v. 41, p. 1, doi. 10.33265/polar.v41.5169

By:

Himmelberger, Anthony;
Frey, Karen E.;
Sangermano, Florencia

Publication type:

Article

Variation in summer nitrogen and phosphorus uptake among Siberian headwater streams.

Published in:

Polar Research, 2016, v. 35, n. 1, p. 1, doi. 10.3402/polar.v35.24571

By:

Schade, John D.;
Seybold, Erin C.;
Drake, Travis;
Spawn, Seth;
Sobczak, William V.;
Frey, Karen E.;
Holmes, Robert M.;
Zimov, Nikita

Publication type:

Article

Can Deep Groundwater Influx be Detected from the Geochemistry of Thermokarst Lakes in Arctic Alaska?

Published in:

Permafrost & Periglacial Processes, 2017, v. 28, n. 3, p. 552, doi. 10.1002/ppp.1895

By:

Hinkel, Kenneth M.;
Arp, Christopher D.;
Townsend-Small, Amy;
Frey, Karen E.

Publication type:

Article

Changing temperature and precipitation extremes in the Hindu Kush-Himalayan region: an analysis of CMIP3 and CMIP5 simulations and projections.

Published in:

International Journal of Climatology, 2015, v. 35, n. 10, p. 3058, doi. 10.1002/joc.4192

By:

Panday, Prajjwal K.;
Thibeault, Jeanne;
Frey, Karen E.

Publication type:

Article

Assessing the potential impacts of declining Arctic sea ice cover on the photochemical degradation of dissolved organic matter in the Chukchi and Beaufort Seas.

Published in:

Journal of Geophysical Research. Biogeosciences, 2015, v. 120, n. 11, p. 2326, doi. 10.1002/2015JG003052

By:

Logvinova, Christie L.;
Frey, Karen E.;
Mann, Paul J.;
Stubbins, Aron;
Spencer, Robert G. M.

Publication type:

Article

Spatial and interannual variability of dissolved organic matter in the Kolyma River, East Siberia, observed using satellite imagery.

Published in:

Journal of Geophysical Research. Biogeosciences, 2011, v. 116, n. G3, p. n/a, doi. 10.1029/2010JG001634

By:

Griffin, Claire G.;
Frey, Karen E.;
Rogan, John;
Holmes, Robert M.

Publication type:

Article

Impacts of climate warming and permafrost thaw on the riverine transport of nitrogen and phosphorus to the Kara Sea.

Published in:

Journal of Geophysical Research. Biogeosciences, 2007, v. 112, n. G4, p. n/a, doi. 10.1029/2006JG000369

By:

Frey, Karen E.;
McClelland, James W.;
Holmes, Robert M.;
Smith, Laurence C.

Publication type:

Article

Optical properties and bioavailability of dissolved organic matter along a flow-path continuum from soil pore waters to the Kolyma River mainstem, East Siberia.

Published in:

Biogeosciences, 2016, v. 13, n. 8, p. 2279, doi. 10.5194/bg-13-2279-2016

By:

Frey, Karen E.;
Sobczak, William V.;
Mann, Paul J.;
Holmes, Robert M.

Publication type:

Article

Impacts of permafrost degradation on arctic river biogeochemistry.

Published in:

Hydrological Processes, 2009, v. 23, n. 1, p. 169, doi. 10.1002/hyp.7196

By:

Frey, Karen E.;
McClelland, James W.

Publication type:

Article

Hydrologic and Landscape Controls on Dissolved Organic Matter Composition Across Western North American Arctic Lakes.

Published in:

Global Biogeochemical Cycles, 2023, v. 37, n. 1, p. 1, doi. 10.1029/2022GB007495

By:

Kurek, Martin R.;
Garcia-Tigreros, Fenix;
Wickland, Kimberly P.;
Frey, Karen E.;
Dornblaser, Mark M.;
Striegl, Robert G.;
Niles, Sydney F.;
McKenna, Amy M.;
Aukes, Pieter J. K.;
Kyzivat, Ethan D.;
Chao Wang;
Pavelsky, Tamlin M.;
Smith, Laurence C.;
Schiff, Sherry L.;
Butman, David;
Spencer, Robert G. M.

Publication type:

Article

Sea-air CO<sub>2</sub> exchange in the western Arctic coastal ocean.

Published in:

Global Biogeochemical Cycles, 2015, v. 29, n. 8, p. 1190, doi. 10.1002/2015GB005153

By:

Evans, Wiley;
Mathis, Jeremy T.;
Cross, Jessica N.;
Bates, Nicholas R.;
Frey, Karen E.;
Else, Brent G. T.;
Papkyriakou, Tim N.;
DeGrandpre, Mike D.;
Islam, Fakhrul;
Cai, Wei-Jun;
Chen, Baoshan;
Yamamoto-Kawai, Michiyo;
Carmack, Eddy;
Williams, William. J.;
Takahashi, Taro

Publication type:

Article

Landscape-level controls on dissolved carbon flux from diverse catchments of the circumboreal.

Published in:

Global Biogeochemical Cycles, 2012, v. 26, n. 4, p. 1, doi. 10.1029/2012GB004299

By:

Tank, Suzanne E.;
Frey, Karen E.;
Striegl, Robert G.;
Raymond, Peter A.;
Holmes, Robert M.;
McClelland, James W.;
Peterson, Bruce J.

Publication type:

Article

How well do we know northern land cover? Comparison of four global vegetation and wetland products with a new ground-truth database for West Siberia.

Published in:

Global Biogeochemical Cycles, 2007, v. 21, n. 1, p. 1, doi. 10.1029/2006GB002706

By:

Frey, Karen E.;
Smith, Laurence C.

Publication type:

Article

Application and evaluation of a snowmelt runoff model in the Tamor River basin, Eastern Himalaya using a Markov Chain Monte Carlo (MCMC) data assimilation approach.

Published in:

Hydrological Processes, 2014, v. 28, n. 21, p. 5337, doi. 10.1002/hyp.10005

By:

Panday, Prajjwal K.;
Williams, Christopher A.;
Frey, Karen E.;
Brown, Molly E.

Publication type:

Article

Amplified carbon release from vast West Siberian peatlands by 2100.

Published in:

Geophysical Research Letters, 2005, v. 32, n. 9, p. n/a, doi. 10.1029/2004GL022025

By:

Frey, Karen E.;
Smith, Laurence C.

Publication type:

Article

Melting of small Arctic ice caps observed from ERS scatterometer time series.

Published in:

Geophysical Research Letters, 2003, v. 30, n. 20, p. n/a, doi. 10.1029/2003GL017641

By:

Smith, Laurence C.;
Sheng, Yongwei;
Forster, Richard R.;
Steffen, Konrad;
Frey, Karen E.;
Alsdorf, Douglas E.

Publication type:

Article

Divergent trajectories of Antarctic surface melt under two twenty-first-century climate scenarios.

Published in:

Nature Geoscience, 2015, v. 8, n. 12, p. 927, doi. 10.1038/ngeo2563

By:

Trusel, Luke D.;
Frey, Karen E.;
Das, Sarah B.;
Karnauskas, Kristopher B.;
Kuipers Munneke, Peter;
van Meijgaard, Erik;
van den Broeke, Michiel R.

Publication type:

Article

A comprehensive satellite-based assessment across the Pacific Arctic Distributed Biological Observatory shows widespread late-season sea surface warming and sea ice declines with significant influences on primary productivity.

Published in:

PLoS ONE, 2023, v. 18, n. 7, p. 1, doi. 10.1371/journal.pone.0287960

By:

Frey, Karen E.;
Comiso, Josefino C.;
Stock, Larry V.;
Young, Luisa N. C.;
Cooper, Lee W.;
Grebmeier, Jacqueline M.

Publication type:

Article

A high-resolution GIS-based inventory of the west Siberian peat carbon pool.

Published in:

Global Biogeochemical Cycles, 2004, v. 18, n. 3, p. n/a, doi. 10.1029/2003GB002190

By:

Sheng, Yongwei;
Smith, Laurence C.;
MacDonald, Glen M.;
Kremenetski, Konstantine V.;
Frey, Karen E.;
Velichko, Andrei A.;
Lee, Mary;
Beilman, David W.;
Dubinin, Peter

Publication type:

Article

Geochemistry of west Siberian streams and their potential response to permafrost degradation.

Published in:

Water Resources Research, 2007, v. 43, n. 3, p. n/a, doi. 10.1029/2006WR004902

By:

Frey, Karen E.;
Siegel, Donald I.;
Smith, Laurence C.

Publication type:

Article

Annual sea-air CO<sub>2</sub> fluxes in the Bering Sea: Insights from new autumn and winter observations of a seasonally ice-covered continental shelf.

Published in:

Journal of Geophysical Research. Oceans, 2014, v. 119, n. 10, p. 6693, doi. 10.1002/2013JC009579

By:

Cross, Jessica N.;
Mathis, Jeremy T.;
Frey, Karen E.;
Cosca, Catherine E.;
Danielson, Seth L.;
Bates, Nicholas R.;
Feely, Richard A.;
Takahashi, Taro;
Evans, Wiley

Publication type:

Article

(Un)frozen Spaces: Exploring the Role of Sea Ice in the Marine Socio-legal Spaces of the Bering and Beaufort Seas.

Published in:

Journal of Borderlands Studies, 2018, v. 33, n. 2, p. 239, doi. 10.1080/08865655.2017.1340847

By:

Shake, Kristen L.;
Frey, Karen E.;
Martin, Deborah G.;
Steinberg, Philip E.

Publication type:

Article

SIDEBAR OBSERVATIONS OF DECLINING PRIMARY PRODUCTIVITY IN THE WESTERN BERING STRAIT.

Published in:

Oceanography, 2022, v. 35, n. 3, p. 140, doi. 10.5670/oceanog.2022.123

By:

Frey, Karen E.;
Kinney, Jaclyn Clement;
Stock, Larry V.;
Osinski, Robert

Publication type:

Article

Changes at the edge: trends in sea ice, ocean temperature and ocean color at the Northwest Atlantic/Southern Arctic interface.

Published in:

Annals of Glaciology, 2020, v. 61, n. 83, p. 426, doi. 10.1017/aog.2020.66

By:

York, Ashley V.;
Frey, Karen E.;
Young, Luisa N. C.

Publication type:

Article

Snowmelt detection from QuikSCAT and ASCAT satellite radar scatterometer data across the Alaskan North Slope.

Published in:

GIScience & Remote Sensing, 2019, v. 56, n. 1, p. 87, doi. 10.1080/15481603.2018.1493045

By:

Sturdivant, Emily J.;
Frey, Karen E.;
Urban, Frank E.

Publication type:

Article

Estimating upper soil horizon carbon stocks in a permafrost watershed of Northeast Siberia by integrating field measurements with Landsat-5 TM and WorldView-2 satellite data.

Published in:

GIScience & Remote Sensing, 2015, v. 52, n. 2, p. 131, doi. 10.1080/15481603.2015.1010434

By:

Broderick, Dylan E.;
Frey, Karen E.;
Rogan, John;
Alexander, Heather D.;
Zimov, Nikita S.

Publication type:

Article

Female Pacific walruses (Odobenus rosmarus divergens) show greater partitioning of sea ice organic carbon than males: Evidence from ice algae trophic markers.

Published in:

PLoS ONE, 2021, v. 16, n. 8, p. 1, doi. 10.1371/journal.pone.0255686

By:

Koch, Chelsea W.;
Cooper, Lee W.;
Woodland, Ryan J.;
Grebmeier, Jacqueline M.;
Frey, Karen E.;
Stimmelmayr, Raphaela;
Magen, Cédric;
Brown, Thomas A.

Publication type:

Article

Tropical Pacific Influence on the Source and Transport of Marine Aerosols to West Antarctica*.

Published in:

Journal of Climate, 2014, v. 27, n. 3, p. 1343, doi. 10.1175/JCLI-D-13-00148.1

By:

Criscitiello, Alison S.;
Das, Sarah B.;
Karnauskas, Kristopher B.;
Evans, Matthew J.;
Frey, Karen E.;
Joughin, Ian;
Steig, Eric J.;
McConnell, Joseph R.;
Medley, Brooke

Publication type:

Article