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• 1. [Article] JonesJuliaCEOASChangingForestWater.pdf

  Citation × Citation Citation Abstract Copy Title: JonesJuliaCEOASChangingForestWater.pdf Author: Creed, Irena F., Jones, Julia A., et al., Spargo, Adam T. Title: JonesJuliaCEOASChangingForestWater.pdf Author: Creed, Irena F., Jones, Julia A., et al., Spargo, Adam T. Close

• 2. [Article] JonesJuliaCEOASChangingForestWater_TableS1.pdf

  Citation × Citation Citation Abstract Copy Title: JonesJuliaCEOASChangingForestWater_TableS1.pdf Author: Creed, Irena F., Jones, Julia A., et al., Spargo, Adam T. Title: JonesJuliaCEOASChangingForestWater_TableS1.pdf Author: Creed, Irena F., Jones, Julia A., et al., Spargo, Adam T. Close

• 3. [Article] Vegetation dynamics and rainfall sensitivity of the Amazon

  To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by the National ...

  Citation × Citation Citation Abstract Copy Title: Vegetation dynamics and rainfall sensitivity of the Amazon Author: Tucker, Compton J., Hilker, Thomas, et al., Lyapustin, Alexei I. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by the National Academy of Sciences and can be found at: http://www.pnas.org/. Title: Vegetation dynamics and rainfall sensitivity of the Amazon Author: Tucker, Compton J., Hilker, Thomas, et al., Lyapustin, Alexei I. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by the National Academy of Sciences and can be found at: http://www.pnas.org/. Close

• 4. [Article] The Response of Northern Hemisphere Snow Cover to a Changing Climate

  A snowpack model sensitivity study, observed changes of snow cover in the NOAA satellite dataset, and snow cover simulations from the Coupled Model Intercomparison Project phase 3 (CMIP3) multimodel dataset ...

  Citation × Citation Citation Abstract Copy Title: The Response of Northern Hemisphere Snow Cover to a Changing Climate Author: Brown, Ross D., Mote, Philip W. A snowpack model sensitivity study, observed changes of snow cover in the NOAA satellite dataset, and snow cover simulations from the Coupled Model Intercomparison Project phase 3 (CMIP3) multimodel dataset are used to provide new insights into the climate response of Northern Hemisphere (NH) snow cover. Under conditions of warming and increasing precipitation that characterizes both observed and projected climate change over much of the NH land area with seasonal snow cover, the sensitivity analysis indicated snow cover duration (SCD) was the snow cover variable exhibiting the strongest climate sensitivity, with sensitivity varying with climate regime and elevation. The highest snow cover–climate sensitivity was found in maritime climates with extensive winter snowfall—for example, the coastal mountains of western North America (NA). Analysis of trends in snow cover duration during the 1966–2007 period of NOAA data showed the largest decreases were concentrated in a zone where seasonal mean air temperatures were in the range of −5° to +5°C that extended around the midlatitudinal coastal margins of the continents. These findings were echoed by the climate models that showed earlier and more widespread decreases in SCD than annual maximum snow water equivalent (SWEmax), with the zone of earliest significant decrease located over the maritime margins of NA and western Europe. The lowest SCD–climate sensitivity was observed in continental interior climates with relatively cold and dry winters, where precipitation plays a greater role in snow cover variability. The sensitivity analysis suggested a potentially complex elevation response of SCD and SWEmax to increasing temperature and precipitation in mountain regions as a result of nonlinear interactions between the duration of the snow season and snow accumulation rates. Title: The Response of Northern Hemisphere Snow Cover to a Changing Climate Author: Brown, Ross D., Mote, Philip W. A snowpack model sensitivity study, observed changes of snow cover in the NOAA satellite dataset, and snow cover simulations from the Coupled Model Intercomparison Project phase 3 (CMIP3) multimodel dataset are used to provide new insights into the climate response of Northern Hemisphere (NH) snow cover. Under conditions of warming and increasing precipitation that characterizes both observed and projected climate change over much of the NH land area with seasonal snow cover, the sensitivity analysis indicated snow cover duration (SCD) was the snow cover variable exhibiting the strongest climate sensitivity, with sensitivity varying with climate regime and elevation. The highest snow cover–climate sensitivity was found in maritime climates with extensive winter snowfall—for example, the coastal mountains of western North America (NA). Analysis of trends in snow cover duration during the 1966–2007 period of NOAA data showed the largest decreases were concentrated in a zone where seasonal mean air temperatures were in the range of −5° to +5°C that extended around the midlatitudinal coastal margins of the continents. These findings were echoed by the climate models that showed earlier and more widespread decreases in SCD than annual maximum snow water equivalent (SWEmax), with the zone of earliest significant decrease located over the maritime margins of NA and western Europe. The lowest SCD–climate sensitivity was observed in continental interior climates with relatively cold and dry winters, where precipitation plays a greater role in snow cover variability. The sensitivity analysis suggested a potentially complex elevation response of SCD and SWEmax to increasing temperature and precipitation in mountain regions as a result of nonlinear interactions between the duration of the snow season and snow accumulation rates. Close

• 5. [Article] Assessment of Climate Change Impacts over the Willamette River Basin Using NARCCAP Dynamically Downscaled Datasets

  Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR.

  Citation × Citation Citation Abstract Copy Title: Assessment of Climate Change Impacts over the Willamette River Basin Using NARCCAP Dynamically Downscaled Datasets Author: Halmstad, Andrew, Moradkhani, Hamid, Najafi, Mohammad Reza Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Title: Assessment of Climate Change Impacts over the Willamette River Basin Using NARCCAP Dynamically Downscaled Datasets Author: Halmstad, Andrew, Moradkhani, Hamid, Najafi, Mohammad Reza Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Close

• 6. [Article] Assessing the Impacts of Global Warming on Snowpack in the Washington Cascades

  The decrease in mountain snowpack associated with global warming is difficult to estimate in the presence of the large year-to-year natural variability in observations of snow-water equivalent (SWE). A ...

  Citation × Citation Citation Abstract Copy Title: Assessing the Impacts of Global Warming on Snowpack in the Washington Cascades Author: Mote, Philip W., Stoelinga, Mark T., Lettenmaier, Dennis P., Casola, Joseph H., Wallace, John M., Cuo, Lan, Livneh, Ben The decrease in mountain snowpack associated with global warming is difficult to estimate in the presence of the large year-to-year natural variability in observations of snow-water equivalent (SWE). A more robust approach for inferring the impacts of global warming is to estimate the temperature sensitivity (λ) of spring snowpack and multiply it by putative past and future temperature rises observed across the Northern Hemisphere. Estimates of λ can be obtained from (i) simple geometric considerations based on the notion that as the seasonal-mean temperature rises by the amount δT, the freezing level and the entire snowpack should rise by the increment δT/Γ, where Γ is the mean lapse rate; (ii) the regression of 1 April SWE measurements upon mean winter temperatures; (iii) a hydrological model forced by daily temperature and precipitation observations; and (iv) the use of inferred accumulated snowfall derived from daily temperature and precipitation data as a proxy for SWE. All four methods yield an estimated sensitivity of 20% of spring snowpack lost per degree Celsius temperature rise. The increase of precipitation accompanying a 1°C warming can be expected to decrease the sensitivity to 16%. Considering observations of temperature rise over the Northern Hemisphere, it is estimated that spring snow-water equivalent in the Cascades portion of the Puget Sound drainage basin should have declined by 8%–16% over the past 30 yr resulting from global warming, and it can be expected to decline by another 11%–21% by 2050. These losses would be statistically undetectable from a trend analysis of the region’s snowpack over the past 30 yr. Title: Assessing the Impacts of Global Warming on Snowpack in the Washington Cascades Author: Mote, Philip W., Stoelinga, Mark T., Lettenmaier, Dennis P., Casola, Joseph H., Wallace, John M., Cuo, Lan, Livneh, Ben The decrease in mountain snowpack associated with global warming is difficult to estimate in the presence of the large year-to-year natural variability in observations of snow-water equivalent (SWE). A more robust approach for inferring the impacts of global warming is to estimate the temperature sensitivity (λ) of spring snowpack and multiply it by putative past and future temperature rises observed across the Northern Hemisphere. Estimates of λ can be obtained from (i) simple geometric considerations based on the notion that as the seasonal-mean temperature rises by the amount δT, the freezing level and the entire snowpack should rise by the increment δT/Γ, where Γ is the mean lapse rate; (ii) the regression of 1 April SWE measurements upon mean winter temperatures; (iii) a hydrological model forced by daily temperature and precipitation observations; and (iv) the use of inferred accumulated snowfall derived from daily temperature and precipitation data as a proxy for SWE. All four methods yield an estimated sensitivity of 20% of spring snowpack lost per degree Celsius temperature rise. The increase of precipitation accompanying a 1°C warming can be expected to decrease the sensitivity to 16%. Considering observations of temperature rise over the Northern Hemisphere, it is estimated that spring snow-water equivalent in the Cascades portion of the Puget Sound drainage basin should have declined by 8%–16% over the past 30 yr resulting from global warming, and it can be expected to decline by another 11%–21% by 2050. These losses would be statistically undetectable from a trend analysis of the region’s snowpack over the past 30 yr. Close

• 7. [Article] The idiosyncrasies of place: geographic variation in the climate–distribution relationships of the American pika

  To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Ecological ...

  Citation × Citation Citation Abstract Copy Title: The idiosyncrasies of place: geographic variation in the climate–distribution relationships of the American pika Author: Rodhouse, Thomas J., Wolff, Susan, Epps, Clinton W., Jeffress, Mackenzie R., Ray, Chris To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Ecological Society of America and can be found at: http://esa.org/. Title: The idiosyncrasies of place: geographic variation in the climate–distribution relationships of the American pika Author: Rodhouse, Thomas J., Wolff, Susan, Epps, Clinton W., Jeffress, Mackenzie R., Ray, Chris To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Ecological Society of America and can be found at: http://esa.org/. Close

• 8. [Article] Seasonal and Elevational Variation of Surface Water δ¹⁸O and δ²H in the Willamette River Basin

  Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR.

  Citation × Citation Citation Abstract Copy Title: Seasonal and Elevational Variation of Surface Water δ¹⁸O and δ²H in the Willamette River Basin Author: Wigington, Parker J. Jr, Coulombe, Rob, Comeleo, Randy, Brooks, J. Renee, Rodecap, Kent, Kendall, Carol Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Title: Seasonal and Elevational Variation of Surface Water δ¹⁸O and δ²H in the Willamette River Basin Author: Wigington, Parker J. Jr, Coulombe, Rob, Comeleo, Randy, Brooks, J. Renee, Rodecap, Kent, Kendall, Carol Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Close

• 9. [Article] Sensitivity of Oregon Watersheds to Streamflow Changes Due to Climate Warming: A Geohydrological Approach

  Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR.

  Citation × Citation Citation Abstract Copy Title: Sensitivity of Oregon Watersheds to Streamflow Changes Due to Climate Warming: A Geohydrological Approach Author: Safeeq, M., Tague, C., Grant, G. Year: 2011 Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Title: Sensitivity of Oregon Watersheds to Streamflow Changes Due to Climate Warming: A Geohydrological Approach Author: Safeeq, M., Tague, C., Grant, G. Year: 2011 Presented at The Oregon Water Conference, May 24-25, 2011, Corvallis, OR. Close

• 10. [Article] A sensitivity-based approach to evaluating future changes in Colorado River Discharge

  This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/10584.

  Citation × Citation Citation Abstract Copy Title: A sensitivity-based approach to evaluating future changes in Colorado River Discharge Author: Vano, Julie A., Lettenmaier, Dennis P. This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/10584. Title: A sensitivity-based approach to evaluating future changes in Colorado River Discharge Author: Vano, Julie A., Lettenmaier, Dennis P. This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/10584. Close