Pisonia forest where coconuts have already been eradicated on Palmyra Atoll. The forest is lush and green.
David Wahl
David is a research scientist at the Geology, Minerals, Energy, and Geophysics Science Center. He received a PhD in Geography from UC Berkeley in 2005. Since joining the USGS in 2004, he has worked to understand drivers and impacts of Quaternary environmental change in North America. Now, his research focuses on reconstructing climate and anthropogenic environmental change.
After coming to the Menlo Park office of GMEG In 2004, David is currently focused on reconstructing climate and anthropogenic environmental change in the western US, Guatemala, and the central Pacific.
Professional Experience
2004 - Present, Research Geographer, US Geological Survey, Menlo Park, CA
2011 - Present, Assistant Adjunct Professor, Geography Department, UC Berkeley
Education and Certifications
Ph.D., Geography, University of California, Berkeley, 2005
M.A., Geography, University of California, Berkeley, 2000
B.A., History, Cal Poly, San Luis Obispo, 1996
Science and Products
Drivers and Impacts of North Pacific Climate Variability
Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2006-16
Pisonia forest where coconuts have already been eradicated on Palmyra Atoll. The forest is lush and green.
USGS and FWS researchers collect sediment cores from Lake Layman (Kamole) to reconstruct vegetation history, nutrient cycling related to bird populations, and climate change over the Holocene.
USGS and FWS researchers collect sediment cores from Lake Layman (Kamole) to reconstruct vegetation history, nutrient cycling related to bird populations, and climate change over the Holocene.
Atmospheric river activity during the late Holocene exceeds modern range of variability in California
Independent age estimates resolve the controversy of ancient human footprints at White Sands
Assessing reproducibility in sedimentary macroscopic charcoal count data
Methods for robust estimates of tree biomass from pollen accumulation rates: Quantifying paleoecological reconstruction uncertainty
Land management explains major trends in forest structure and composition over the last millennium in California’s Klamath Mountains
Understanding rates of change: A case study using fossil pollen records from California to assess the potential for and challenges to a regional data synthesis
Linking modern pollen accumulation rates to biomass: Quantitative vegetation reconstruction in the western Klamath Mountains, NW California, USA
A multiproxy database of western North American Holocene paleoclimate records
Holocene paleoclimate change in the western US: The importance of chronology in discerning patterns and drivers
Radiocarbon and geologic evidence reveal Ilopango volcano as source of the colossal 'mystery' eruption of 539/40 CE
Paleoenvironmental, epigraphic, and archaeological evidence of total warfare among the Classic Maya
A North American Hydroclimate Synthesis (NAHS) of the Common Era
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Drivers and Impacts of North Pacific Climate Variability
Mercury speciation and other constituent data from deep sediment cores in Alviso Slough, South San Francisco Bay, California, 2006-16
Pisonia forest where coconuts have already been eradicated on Palmyra Atoll. The forest is lush and green.
Pisonia forest where coconuts have already been eradicated on Palmyra Atoll. The forest is lush and green.
USGS and FWS researchers collect sediment cores from Lake Layman (Kamole) to reconstruct vegetation history, nutrient cycling related to bird populations, and climate change over the Holocene.
USGS and FWS researchers collect sediment cores from Lake Layman (Kamole) to reconstruct vegetation history, nutrient cycling related to bird populations, and climate change over the Holocene.
Atmospheric river activity during the late Holocene exceeds modern range of variability in California
Independent age estimates resolve the controversy of ancient human footprints at White Sands
Assessing reproducibility in sedimentary macroscopic charcoal count data
Methods for robust estimates of tree biomass from pollen accumulation rates: Quantifying paleoecological reconstruction uncertainty
Land management explains major trends in forest structure and composition over the last millennium in California’s Klamath Mountains
Understanding rates of change: A case study using fossil pollen records from California to assess the potential for and challenges to a regional data synthesis
Linking modern pollen accumulation rates to biomass: Quantitative vegetation reconstruction in the western Klamath Mountains, NW California, USA
A multiproxy database of western North American Holocene paleoclimate records
Holocene paleoclimate change in the western US: The importance of chronology in discerning patterns and drivers
Radiocarbon and geologic evidence reveal Ilopango volcano as source of the colossal 'mystery' eruption of 539/40 CE
Paleoenvironmental, epigraphic, and archaeological evidence of total warfare among the Classic Maya
A North American Hydroclimate Synthesis (NAHS) of the Common Era
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.