BCSD downscaling

Knowledge graph centered on BCSD downscaling with 49 nodes and 145 connections. Top connected: climate change, snowpack persistence, precipitation, East River, streamflow.

Method synopsis

Use of Bias Correction and Spatial Disaggregation downscaled CMIP5 climate projections processed through VIC hydrologic model to generate future streamflow scenarios.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Future Colorado River Basin Drought and Surplus (2022), Hydrology. Implementations in other papers (listed below) may differ.

1. Obtain future climate projections
   Downloaded downscaled climate projections from Bias Correction and Spatial Disaggregation (BCSD) database from Bureau of Reclamation. Used CMIP5 projections downscaled to 1/8 degree 12 km grid scales using VIC hydrologic model.
   Quantities: 8 total projections from 4 models (HadGEM2-ES, CNRM-CM5, CanESM2, MI-ROC5) at 2 emission levels (RCP 4.5 and 8.5)Duration: Future projection period 2021-2099Conditions: Representative Concentration Pathways 4.5 and 8.5 scenarios
   Equipment: BCSD database, VIC hydrologic model, CMIP5 climate projections
2. Calculate water year streamflow
   Computed water year cumulation from monthly data for October-September period. Converted streamflow data to million acre-feet (MAF) units for water management compatibility.
   Quantities: 17 stations analyzed with conversion factor 1 MAF = 1233 million cubic metersDuration: Applied to all historical and future time seriesConditions: Water year defined consistently as October-September
   Equipment: Statistical software for data processing

Typical Equipment

• BCSD database
• VIC hydrologic model
• CMIP5 climate projections

Output Measurements

• future streamflow projections
• water year flow volumes

Papers Using This Protocol (1)

Species Studied With This Protocol

Places Where Used