Miriam Jones, Ph.D.
I use a range of proxies (plant macrofossils, pollen, charcoal, stable isotopes) to interpret landscape change over centennial to millennial timescales. Current topics include responses to abrupt permafrost thaw, sea-level rise, sea-ice retreat, and centennial-scale land-use change.
Education and Certifications
Columbia University, PhD, 2008
Columbia University, MPhil, 2006
Columbia University, M. A., 2005
Barnard College, A.B., 2002, Magna Cum Laude
Science and Products
Filter Total Items: 50
Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence
Reconstructing climates of the past relies on a variety of evidence from a large number of sites to capture the varied features of climate and the spatial heterogeneity of climate change. This review summarizes available information from diverse Holocene paleoenvironmental records across eastern Beringia (Alaska, westernmost Canada and adjacent seas), and it quantifies the primary trends...
Authors
Darrell Kaufman, Yarrow Axford, Andrew Henderson, Nicolas McKay, W. Wyatt Oswald, Casey Saenger, R. Scott Anderson, Hannah Bailey, Benjamin Clegg, Konrad Gajewski, Feng Hu, Miriam Jones, Charly Massa, Cody Routson, Al Werner, Matthew Wooller, Zicheng Yu
Presence of rapidly degrading permafrost plateaus in south-central Alaska Presence of rapidly degrading permafrost plateaus in south-central Alaska
Permafrost presence is determined by a complex interaction of climatic, topographic, and ecological conditions operating over long time scales. In particular, vegetation and organic layer characteristics may act to protect permafrost in regions with a mean annual air temperature (MAAT) above 0 °C. In this study, we document the presence of residual permafrost plateaus in the western...
Authors
Benjamin Jones, Carson Baughman, Vladimir Romanovsky, Andrew Parsekian, Esther Babcock, Eva Stephani, Miriam Jones, Guido Grosse, Edward Berg
Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils
Permafrost dynamics play an important role in high-latitude peatland carbon balance and are key to understanding the future response of soil carbon stocks. Permafrost aggradation can control the magnitude of the carbon feedback in peatlands through effects on peat properties. We compiled peatland plant macrofossil records for the northern permafrost zone (515 cores from 280 sites) and...
Authors
Claire Treat, Miriam Jones, P. Camill, A. Gallego-Sala, M. Garneau, Jennifer Harden, G. Hugelius, E.S. Klein, Ulla Kokfelt, P. Kuhry, Julie Loisel, J.H. Mathijssen, J.A. O'Donnell, P.O. Oksanen, T.M. Ronkainen, A. Sannel, J. Talbot, C.M. Tarnocal, M. Valiranta
Thermokarst lake methanogenesis along a complete talik profile Thermokarst lake methanogenesis along a complete talik profile
Thermokarst (thaw) lakes emit methane (CH4) to the atmosphere formed from thawed permafrost organic matter (OM), but the relative magnitude of CH4 production in surface lake sediments vs. deeper thawed permafrost horizons is not well understood. We assessed anaerobic CH4 production potentials from various depths along a 590 cm long lake sediment core that captured the entire sediment...
Authors
J.K. Heslop, K.M. Walter Anthony, A. Sepulveda-Jauregui, K. Martinez-Cruz, A. Bondurant, G. Grosse, Miriam Jones
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists of 268 peat cores from 215 sites located north of 45°N. It encompasses regions within which peat carbon data have only recently become available, such as the West Siberia Lowlands, the Hudson...
Authors
Rebecca Loiselle, Zicheng Yu, David Beilman, Philip Camill, Jukka Alm, Matthew Amesbury, David Anderson, Sofia Andersson, Christopher Bochicchio, Keith Barber, Lisa Belyea, Joan Bunbury, Frank Chambers, Dan Charman, Francois De Vleeschouwer, Barbara Fialkiawicz-Koziel, Sarah A Finkelstein, Mariusz Galka, Michelle Garneau, Dan Hammarlund, William Hinchcliffe, James Holmquist, Paul Hughes, Miriam Jones, Eric Klein, Ulla Kokfelt, Atte Korhola, Peter Kuhry, Alexandre Lamarre, Mariusz Lamentowicz, David Large, Martin Lavoie, Glen MacDonald, Gabriel Magnan, Markku Makila, Gunnar Mallon, Paul Mathijssen, Dmitri Mauquoy, Julia McCarroll, Tim Moore, Jonathan Nichols, Benjamin O’Reilly, P.O. Oksanen, Maara Packalen, Dorothy Peteet, Pierre Richard, Stephen Robinson, T.M. Ronkainen, Mats Rundgren, A. Sannel, Charles Tarnocai, Tim Thom, Eeva-Stiina Tuittila, Merritt Turetsky, M. Valiranta, Marjolein van der Linden, Bas van Geel, Simon van Bellen, Dale Vitt, Yan Zhao, Weijian Zhou
A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch
Thermokarst lakes formed across vast regions of Siberia and Alaska during the last deglaciation and are thought to be a net source of atmospheric methane and carbon dioxide during the Holocene epoch1,2,3,4. However, the same thermokarst lakes can also sequester carbon5, and it remains uncertain whether carbon uptake by thermokarst lakes can offset their greenhouse gas emissions. Here we...
Authors
K. M. Walter Anthony, S. Zimov, G. Grosse, Miriam Jones, P. Anthony, F. Chapin, J. Finlay, M. Mack, S. Davydov, P. Frenzel, S. Frolking
Late Holocene vegetation, climate, and land-use impacts on carbon dynamics in the Florida Everglades Late Holocene vegetation, climate, and land-use impacts on carbon dynamics in the Florida Everglades
Tropical and subtropical peatlands are considered a significant carbon sink. The Florida Everglades includes 6000-km2 of peat-accumulating wetland; however, detailed carbon dynamics from different environments within the Everglades have not been extensively studied or compared. Here we present carbon accumulation rates from 13 cores and 4 different environments, including sawgrass ridges...
Authors
Miriam Jones, Christopher Bernhardt, Debra Willard
A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat
We used stable oxygen isotopes derived from bulk peat (δ18OTOM), in conjunction with plant macrofossils and previously published carbon accumulation records, in a ∼14,500 cal yr BP peat core (HT Fen) from the Kenai lowlands in south-central Alaska to reconstruct the climate history of the area. We find that patterns are broadly consistent with those from lacustrine records across the...
Authors
Miriam Jones, Matthew J. Wooller, Dorothy Peteet
Evaluating CO2 and CH4 dynamics of Alaskan ecosystems during the Holocene Thermal Maximum Evaluating CO2 and CH4 dynamics of Alaskan ecosystems during the Holocene Thermal Maximum
The Arctic has experienced much greater warming than the global average in recent decades due to polar amplification. Warming has induced ecological changes that have impacted climate carbon-cycle feedbacks, making it important to understand the climate and vegetation controls on carbon (C) dynamics. Here we used the Holocene Thermal Maximum (HTM, 11–9 ka BP, 1 ka BP = 1000 cal yr before...
Authors
Yujie He, Miriam Jones, Qianlai Zhuang, Christopher Bochicchio, B. Felzer, Erik Mason, Zicheng Yu
Sources and sinks of carbon in boreal ecosystems of interior Alaska: a review Sources and sinks of carbon in boreal ecosystems of interior Alaska: a review
Boreal regions store large quantities of carbon but are increasingly vulnerable to carbon loss due to disturbance and climate warming. The boreal region, underlain by discontinuous permafrost, presents a challenging landscape for itemizing current and potential carbon sources and sinks in the boreal soil and vegetation. The roles of fire, forest succession, and the presence (or absence)...
Authors
Thomas Douglas, Miriam Jones, Christopher Hiemstra
Lateglacial and Holocene climate, disturbance and permafrost peatland dynamics on the Seward Peninsula, western Alaska Lateglacial and Holocene climate, disturbance and permafrost peatland dynamics on the Seward Peninsula, western Alaska
Northern peatlands have accumulated large carbon (C) stocks, acting as a long-term atmospheric C sink since the last deglaciation. How these C-rich ecosystems will respond to future climate change, however, is still poorly understood. Furthermore, many northern peatlands exist in regions underlain by permafrost, adding to the challenge of projecting C balance under changing climate and...
Authors
Stephanie Hunt, Zicheng Yu, Miriam Jones
Characterizing post-drainage succession in Thermokarst Lake Basins on the Seward Peninsula, Alaska with TerraSAR-X Backscatter and Landsat-based NDVI data Characterizing post-drainage succession in Thermokarst Lake Basins on the Seward Peninsula, Alaska with TerraSAR-X Backscatter and Landsat-based NDVI data
Drained thermokarst lake basins accumulate significant amounts of soil organic carbon in the form of peat, which is of interest to understanding carbon cycling and climate change feedbacks associated with thermokarst in the Arctic. Remote sensing is a tool useful for understanding temporal and spatial dynamics of drained basins. In this study, we tested the application of high-resolution...
Authors
Prajna Regmi, Guido Grosse, Miriam Jones, Benjamin Jones, Katey Walter Anthony
Science and Products
Filter Total Items: 50
Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence Holocene climate changes in eastern Beringia (NW North America) – A systematic review of multi-proxy evidence
Reconstructing climates of the past relies on a variety of evidence from a large number of sites to capture the varied features of climate and the spatial heterogeneity of climate change. This review summarizes available information from diverse Holocene paleoenvironmental records across eastern Beringia (Alaska, westernmost Canada and adjacent seas), and it quantifies the primary trends...
Authors
Darrell Kaufman, Yarrow Axford, Andrew Henderson, Nicolas McKay, W. Wyatt Oswald, Casey Saenger, R. Scott Anderson, Hannah Bailey, Benjamin Clegg, Konrad Gajewski, Feng Hu, Miriam Jones, Charly Massa, Cody Routson, Al Werner, Matthew Wooller, Zicheng Yu
Presence of rapidly degrading permafrost plateaus in south-central Alaska Presence of rapidly degrading permafrost plateaus in south-central Alaska
Permafrost presence is determined by a complex interaction of climatic, topographic, and ecological conditions operating over long time scales. In particular, vegetation and organic layer characteristics may act to protect permafrost in regions with a mean annual air temperature (MAAT) above 0 °C. In this study, we document the presence of residual permafrost plateaus in the western...
Authors
Benjamin Jones, Carson Baughman, Vladimir Romanovsky, Andrew Parsekian, Esther Babcock, Eva Stephani, Miriam Jones, Guido Grosse, Edward Berg
Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils Effects of permafrost aggradation on peat properties as determined from a pan-Arctic synthesis of plant macrofossils
Permafrost dynamics play an important role in high-latitude peatland carbon balance and are key to understanding the future response of soil carbon stocks. Permafrost aggradation can control the magnitude of the carbon feedback in peatlands through effects on peat properties. We compiled peatland plant macrofossil records for the northern permafrost zone (515 cores from 280 sites) and...
Authors
Claire Treat, Miriam Jones, P. Camill, A. Gallego-Sala, M. Garneau, Jennifer Harden, G. Hugelius, E.S. Klein, Ulla Kokfelt, P. Kuhry, Julie Loisel, J.H. Mathijssen, J.A. O'Donnell, P.O. Oksanen, T.M. Ronkainen, A. Sannel, J. Talbot, C.M. Tarnocal, M. Valiranta
Thermokarst lake methanogenesis along a complete talik profile Thermokarst lake methanogenesis along a complete talik profile
Thermokarst (thaw) lakes emit methane (CH4) to the atmosphere formed from thawed permafrost organic matter (OM), but the relative magnitude of CH4 production in surface lake sediments vs. deeper thawed permafrost horizons is not well understood. We assessed anaerobic CH4 production potentials from various depths along a 590 cm long lake sediment core that captured the entire sediment...
Authors
J.K. Heslop, K.M. Walter Anthony, A. Sepulveda-Jauregui, K. Martinez-Cruz, A. Bondurant, G. Grosse, Miriam Jones
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists of 268 peat cores from 215 sites located north of 45°N. It encompasses regions within which peat carbon data have only recently become available, such as the West Siberia Lowlands, the Hudson...
Authors
Rebecca Loiselle, Zicheng Yu, David Beilman, Philip Camill, Jukka Alm, Matthew Amesbury, David Anderson, Sofia Andersson, Christopher Bochicchio, Keith Barber, Lisa Belyea, Joan Bunbury, Frank Chambers, Dan Charman, Francois De Vleeschouwer, Barbara Fialkiawicz-Koziel, Sarah A Finkelstein, Mariusz Galka, Michelle Garneau, Dan Hammarlund, William Hinchcliffe, James Holmquist, Paul Hughes, Miriam Jones, Eric Klein, Ulla Kokfelt, Atte Korhola, Peter Kuhry, Alexandre Lamarre, Mariusz Lamentowicz, David Large, Martin Lavoie, Glen MacDonald, Gabriel Magnan, Markku Makila, Gunnar Mallon, Paul Mathijssen, Dmitri Mauquoy, Julia McCarroll, Tim Moore, Jonathan Nichols, Benjamin O’Reilly, P.O. Oksanen, Maara Packalen, Dorothy Peteet, Pierre Richard, Stephen Robinson, T.M. Ronkainen, Mats Rundgren, A. Sannel, Charles Tarnocai, Tim Thom, Eeva-Stiina Tuittila, Merritt Turetsky, M. Valiranta, Marjolein van der Linden, Bas van Geel, Simon van Bellen, Dale Vitt, Yan Zhao, Weijian Zhou
A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch
Thermokarst lakes formed across vast regions of Siberia and Alaska during the last deglaciation and are thought to be a net source of atmospheric methane and carbon dioxide during the Holocene epoch1,2,3,4. However, the same thermokarst lakes can also sequester carbon5, and it remains uncertain whether carbon uptake by thermokarst lakes can offset their greenhouse gas emissions. Here we...
Authors
K. M. Walter Anthony, S. Zimov, G. Grosse, Miriam Jones, P. Anthony, F. Chapin, J. Finlay, M. Mack, S. Davydov, P. Frenzel, S. Frolking
Late Holocene vegetation, climate, and land-use impacts on carbon dynamics in the Florida Everglades Late Holocene vegetation, climate, and land-use impacts on carbon dynamics in the Florida Everglades
Tropical and subtropical peatlands are considered a significant carbon sink. The Florida Everglades includes 6000-km2 of peat-accumulating wetland; however, detailed carbon dynamics from different environments within the Everglades have not been extensively studied or compared. Here we present carbon accumulation rates from 13 cores and 4 different environments, including sawgrass ridges...
Authors
Miriam Jones, Christopher Bernhardt, Debra Willard
A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat
We used stable oxygen isotopes derived from bulk peat (δ18OTOM), in conjunction with plant macrofossils and previously published carbon accumulation records, in a ∼14,500 cal yr BP peat core (HT Fen) from the Kenai lowlands in south-central Alaska to reconstruct the climate history of the area. We find that patterns are broadly consistent with those from lacustrine records across the...
Authors
Miriam Jones, Matthew J. Wooller, Dorothy Peteet
Evaluating CO2 and CH4 dynamics of Alaskan ecosystems during the Holocene Thermal Maximum Evaluating CO2 and CH4 dynamics of Alaskan ecosystems during the Holocene Thermal Maximum
The Arctic has experienced much greater warming than the global average in recent decades due to polar amplification. Warming has induced ecological changes that have impacted climate carbon-cycle feedbacks, making it important to understand the climate and vegetation controls on carbon (C) dynamics. Here we used the Holocene Thermal Maximum (HTM, 11–9 ka BP, 1 ka BP = 1000 cal yr before...
Authors
Yujie He, Miriam Jones, Qianlai Zhuang, Christopher Bochicchio, B. Felzer, Erik Mason, Zicheng Yu
Sources and sinks of carbon in boreal ecosystems of interior Alaska: a review Sources and sinks of carbon in boreal ecosystems of interior Alaska: a review
Boreal regions store large quantities of carbon but are increasingly vulnerable to carbon loss due to disturbance and climate warming. The boreal region, underlain by discontinuous permafrost, presents a challenging landscape for itemizing current and potential carbon sources and sinks in the boreal soil and vegetation. The roles of fire, forest succession, and the presence (or absence)...
Authors
Thomas Douglas, Miriam Jones, Christopher Hiemstra
Lateglacial and Holocene climate, disturbance and permafrost peatland dynamics on the Seward Peninsula, western Alaska Lateglacial and Holocene climate, disturbance and permafrost peatland dynamics on the Seward Peninsula, western Alaska
Northern peatlands have accumulated large carbon (C) stocks, acting as a long-term atmospheric C sink since the last deglaciation. How these C-rich ecosystems will respond to future climate change, however, is still poorly understood. Furthermore, many northern peatlands exist in regions underlain by permafrost, adding to the challenge of projecting C balance under changing climate and...
Authors
Stephanie Hunt, Zicheng Yu, Miriam Jones
Characterizing post-drainage succession in Thermokarst Lake Basins on the Seward Peninsula, Alaska with TerraSAR-X Backscatter and Landsat-based NDVI data Characterizing post-drainage succession in Thermokarst Lake Basins on the Seward Peninsula, Alaska with TerraSAR-X Backscatter and Landsat-based NDVI data
Drained thermokarst lake basins accumulate significant amounts of soil organic carbon in the form of peat, which is of interest to understanding carbon cycling and climate change feedbacks associated with thermokarst in the Arctic. Remote sensing is a tool useful for understanding temporal and spatial dynamics of drained basins. In this study, we tested the application of high-resolution...
Authors
Prajna Regmi, Guido Grosse, Miriam Jones, Benjamin Jones, Katey Walter Anthony