USFWS (US Fish & Wildlife Service). A primary motivation for the study was to support planning at geographic scales ranging from relatively small river basins (e.g., planning studies in individual sub-basins, such as the Yakima or Okanagan basins) to main-stem planning studies for the CRB as a whole (e.g., planning studies for the Columbia River hydro system). Highs around 80. These spatial variations in the change in AET are broadly reflective of the dominant drivers of AET in each case. Associated shifts in streamflow timing from spring and summer to winter are also evident in basins that currently have significant snow accumulation in winter, whereas rain-dominant basins show minimal shifts in streamflow timing. It is important to acknowledge that opinions differ on the utility or even possibility of improving ensembles of future projections based on the ability to simulate the past climate (e.g., Gleckler, Taylor, & Doutriaux, Citation2008). An understanding of the basin's transboundary nature has also informed CIG's hydrologic modelling studies, which have consistently provided complete coverage of the Canadian and US portions of the basin. hb```"V* aB@{= ,!It#GjWeyP1% Detailed forecast for Upper Columbia Basin Tonight Mostly clear. 2012. This choice was imposed by WDOE. A number of sub-basins are nested within each other, as shown in the right panel along with their relative sizes. Preparing for climatic change: The water, salmon, and forests of the Pacific Northwest. Either naturalized or modified flows (Crook, Citation1993) are used for bias correction of data provided in the site-specific products discussed below, with naturalized data taking precedence if available. The CBCCSP was developed to address these diverse needs. The PET is shown to increase dramatically over most of the domain (primarily because of warming in the scenarios), whereas AET shows widespread declines east of the Cascade Range. PDF Columbia River Basin Fact Sheet - usbr.gov NWPCC (Northwest Power and Conservation Council). Final calibration results for the model are shown in Fig. Highs in the lower to mid 60s. West-wide studies to support USFS and USFWS needs (including current efforts to include California) will have a budget of less than half this amount, a level of efficiency that would not have been achievable without the CBCCSP pilot effort. Fig. Here, however, we show the same figures in metric units. Evidence includes increases in global average air and ocean temperatures, widespread melting of snow and ice, and rising global mean sea level. Size, however, is only one aspect of what makes the river particularly unique. To request a reprint or corporate permissions for this article, please click on the relevant link below: Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content? (1 April SWE and SWE2PR values were calculated using the CD VIC scenarios.). Gridded meteorological datasets (daily total precipitation and maximum and minimum daily temperature) at 1/16 degree latitude-longitude resolution (approximately 7km by 5km) were constructed for the study from observed station records for the period 1915 to 2006. %%EOF The DOI via the USFWS has recently established a set of LCCs across the United States (USFWS, Citation2013) and has generated additional funding to support a group of regional CSCs, one of which was recently established in the PNW (PNWCSC), combining the efforts of about 15 PNW research universities, jointly led by the USGS, Oregon State University, the UW, and the University of Idaho.
