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Structure and Detectability of Trends in Hydrological Measures over the Western United States
(2009-08)
This study examines the geographic structure of observed trends in key hydrologically relevant variables across the western United States at ⅛° spatial resolution during the period 1950–99. Geographical regions, latitude ...
Detection and Attribution of Streamflow Timing Changes to Climate Change in the Western United States
(2009-07)
This article applies formal detection and attribution techniques to investigate the nature of observed shifts in the timing of streamflow in the western United States. Previous studies have shown that the snow hydrology ...
Changes in Aridity in the Western United States
(2008-08)
It is often remarked that most of the western US (Figure
1) is “always in drought,” especially by visitors from wetter
climates. The plants and landforms of the West, however, are more or less adapted to the region’s ...
Downscaling With Constructed Analogues: Daily Precipitation and Temperature Fields Over The United States
(2008-01)
Daily precipitation and average temperature patterns for the contiguous United States were
downscaled from a 2.5 x 2.5 degree (coarse) resolution grid to a 1/8 x 1/8 degree (fine) resolution
grid using a constructed‐analogues ...
California Climate Change Center Report Series Number 2008-0XX
(2008-06)
Four dynamic regional climate models (RCMs) and one statistical downscaling
approach were used to downscale 10 years of historical climate in California. To isolate
possible limitations of the downscaling methods, we ...
Sources of Variability of Evapotranspiration in California
(2005-02)
The variability (1990–2002) of potential evapotranspiration estimates (ETo) and related meteorological variables from a set of stations from the California Irrigation Management System (CIMIS) is studied. Data from the ...
Climate change scenarios and sea level rise estimates for California 2008 Climate Change Scenarios Assessment
(2009-03)
For the 2008 California Climate Change Assessment, to further investigate possible future
climate changes in California, a set of 12 climate change model simulations was selected and
evaluated. From the Intergovernmental ...
Potential increase in floods in California’s Sierra Nevada under future climate projections
(2011-12)
California’s mountainous topography, exposure to occasional heavily moisture-laden
storm systems, and varied communities and infrastructures in low lying areas make it highly
vulnerable to floods. An important question ...
Warming and Earlier Spring Increase Western U.S. Forest Wildfire Activity
(2006-08-18)
Western United States forest wildfire activity is widely thought to have increased in recent decades, yet neither the extent of recent changes nor the degree to which climate may be driving regional changes in wildfire has ...
Human-Induced Changes in the Hydrology of the Western United States
(2008-02-22)
Observations have shown that the hydrological cycle of the western United States changed significantly over the last half of the 20th century. We present a regional, multivariable climate change detection and attribution ...