Miriam Jones, Ph.D.
I use a range of proxies (plant macrofossils, pollen, charcoal, stable isotopes) to interpret climate and 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: 46
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 package of th
Authors
J.K. Heslop, K.M. Walter Anthony, A. Sepulveda-Jauregui, K. Martinez-Cruz, A. Bondurant, G. Grosse, Miriam C. Jones
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 Bay Lowla
Authors
Rebecca A. Loiselle, Zicheng Yu, David Beilman, Philip Camill, Jukka Alm, Matthew Amesbury, David Anderson, Sofia Andersson, Christopher Bochicchio, Keith Barber, Lisa Belyea, Joan Bunbury, Frank M. 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 C. Jones, Eric S. 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 R. Moore, Jonathan M. Nichols, Benjamin O'Reilly, P.O. Oksanen, Maara S. Packalen, Dorothy M. Peteet, Pierre Richard, Stephen Robinson, T.M. Ronkainen, Mats Rundgren, A. Britta K. 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
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 use field
Authors
K. M. Walter Anthony, S. A. Zimov, G. Grosse, Miriam C. Jones, P. Anthony, F. S. Chapin, J. C. Finlay, M. C. Mack, S. Davydov, P. F. Frenzel, S. Frolking
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 and sloug
Authors
Miriam C. Jones, Christopher E. Bernhardt, Debra A. Willard
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 region, and a
Authors
Miriam C. Jones, Matthew J. Wooller, Dorothy M. Peteet
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 present)
Authors
Yujie He, Miriam C. Jones, Qianlai Zhuang, Christopher Bochicchio, B. S. Felzer, Erik Mason, Zicheng Yu
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) of permafr
Authors
Thomas A. Douglas, Miriam C. Jones, Christopher A. Hiemstra
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 permafrost
Authors
Stephanie D. Hunt, Zicheng Yu, Miriam C. Jones
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 X-band Sy
Authors
Prajna Regmi, Guido Grosse, Miriam C. Jones, Benjamin M. Jones, Katey Walter Anthony
Peat accumulation in drained thermokarst lake basins in continuous, ice-rich permafrost, northern Seward Peninsula, Alaska
Thermokarst lakes and peat-accumulating drained lake basins cover a substantial portion of Arctic lowland landscapes, yet the role of thermokarst lake drainage and ensuing peat formation in landscape-scale carbon (C) budgets remains understudied. Here we use measurements of terrestrial peat thickness, bulk density, organic matter content, and basal radiocarbon age from permafrost cores, soil pits,
Authors
Miriam C. Jones, Guido Grosse, Benjamin M. Jones, Katey Walter Anthony
Science and Products
- Science
- Data
- Multimedia
- Publications
Filter Total Items: 46
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 package of thAuthorsJ.K. Heslop, K.M. Walter Anthony, A. Sepulveda-Jauregui, K. Martinez-Cruz, A. Bondurant, G. Grosse, Miriam C. JonesA 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 Bay LowlaAuthorsRebecca A. Loiselle, Zicheng Yu, David Beilman, Philip Camill, Jukka Alm, Matthew Amesbury, David Anderson, Sofia Andersson, Christopher Bochicchio, Keith Barber, Lisa Belyea, Joan Bunbury, Frank M. 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 C. Jones, Eric S. 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 R. Moore, Jonathan M. Nichols, Benjamin O'Reilly, P.O. Oksanen, Maara S. Packalen, Dorothy M. Peteet, Pierre Richard, Stephen Robinson, T.M. Ronkainen, Mats Rundgren, A. Britta K. 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 ZhouA 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 use fieldAuthorsK. M. Walter Anthony, S. A. Zimov, G. Grosse, Miriam C. Jones, P. Anthony, F. S. Chapin, J. C. Finlay, M. C. Mack, S. Davydov, P. F. Frenzel, S. FrolkingLate 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 and slougAuthorsMiriam C. Jones, Christopher E. Bernhardt, Debra A. WillardA 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 region, and aAuthorsMiriam C. Jones, Matthew J. Wooller, Dorothy M. PeteetEvaluating 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 present)AuthorsYujie He, Miriam C. Jones, Qianlai Zhuang, Christopher Bochicchio, B. S. Felzer, Erik Mason, Zicheng YuSources 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) of permafrAuthorsThomas A. Douglas, Miriam C. Jones, Christopher A. HiemstraLateglacial 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 permafrostAuthorsStephanie D. Hunt, Zicheng Yu, Miriam C. JonesCharacterizing 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 X-band SyAuthorsPrajna Regmi, Guido Grosse, Miriam C. Jones, Benjamin M. Jones, Katey Walter AnthonyPeat accumulation in drained thermokarst lake basins in continuous, ice-rich permafrost, northern Seward Peninsula, Alaska
Thermokarst lakes and peat-accumulating drained lake basins cover a substantial portion of Arctic lowland landscapes, yet the role of thermokarst lake drainage and ensuing peat formation in landscape-scale carbon (C) budgets remains understudied. Here we use measurements of terrestrial peat thickness, bulk density, organic matter content, and basal radiocarbon age from permafrost cores, soil pits,AuthorsMiriam C. Jones, Guido Grosse, Benjamin M. Jones, Katey Walter Anthony - News