2023 CSDMS meeting-088: Difference between revisions
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{{CSDMS meeting abstract title temp2023 | {{CSDMS meeting abstract title temp2023 | ||
|CSDMS meeting abstract title=Transient ecosystem response to climatic variability since the late Pleistocene in central New Mexico modeled with Landlab | |CSDMS meeting abstract title=Transient ecosystem response to climatic variability since the late Pleistocene in central New Mexico modeled with Landlab | ||
|Working_group_member_WG_FRG=Terrestrial Working Group, Hydrology | |Working_group_member_WG_FRG=Terrestrial Working Group, Hydrology Focus Research Group, Critical Zone Focus Research Group, Ecosystem Dynamics Focus Research Group | ||
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{{CSDMS meeting authors template | {{CSDMS meeting authors template | ||
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Transient ecosystem response to climatic variability since the late Pleistocene in central New Mexico modeled with Landlab
Erkan Istanbulluoglu,
University of Washington Seattle Washington, United States. erkani@uw.edu
Sai Siddhartha Nudurupati, Jacobs Sacramento California, United States. saisiddu@gmail.com
On a broad scale climate controls the distribution of biomes and sets an upper limit for woody plant canopy cover. During last glacial cycle that peaked ~18,000 years (B.P.) in the Late Pleistocene, the southwestern United States was much wetter and cooler than in the Holocene (last 11,000 years) and today. Since the Last Glacial Maximum, wetter and cooler climate in most arid semiarid regions has generally transitioned to drier and warmer conditions, establishing their characteristic (i.e., today’s native) ecosystems and fire regimes 3,000 - 5,000 years B.P. We use the Landlab earth surface modeling toolkit to explore the implications of the climate since the late Pleistocene on ecosystem patterns, using a calibrated model for conditions prior to the Euro-America settlers. Climate is constructed based on paleoclimatic proxies and weather station data. The controls of seedling dispersal strategies of plants and water availability as mediated by aspect are discussed.
