weap 2023_Water Evaluation And Planning System
MAJOR ENHANCEMENTS:
CMIP6 global climate scenarios: These global downscaled climate scenarios come from the NASA Earth Exchange Global Daily Downscaled Projections of the Coupled Model Intercomparison Project Phase 6 (CMIP6). These include data from 27 GCM's and 4 Shared Socioeconomic Pathways (SSP 126, SSP 245, SSP 370, SSP 585), covering the period 2015-2100 at 28 km (0.25 degree) resolution. Available in catchment delineation mode. See the "Automatic Catchment Delineation" help topic for more information.
CMIP5 US climate scenarios: These high-resolution climate scenarios for the United State come from the Coupled Model Intercomparison Project Phase 5 (CMIP5), downscaled by the Multivariate Adaptive Constructed Analogs (MACA, Abatzoglou, 2012) statistical downscaling method with the METDATA (Abatzoglou, 2013) training dataset. These include data from 18 GCM's and 2 Representative Concentration Pathways (RCP 4.5 and RCP 8.5), covering the period 2006-2099 at 4 km (0.04 degree) resolution. Available in catchment delineation mode.
Princeton climate data: Version 3 now available in catchment delineation mode. These extend the Princeton version 2 Princeton climate data previously (and still) available in WEAP, by adding relative humidity and covering the period 1948-2014.
Satellite Maps: WEAP can automatically download and display background maps from several internet sources, such as USGS, OpenStreetMap, Google, National Geographic and ESRI. These include satellite images, street maps and topographic maps, and can be very helpful when building your WEAP model. To load a map, right click on the Schematic and choose Background Image Layer from the popup menu, then select the internet source to use, e.g., "USGS Satellite." See the "Background Maps" help topic for more information.
CATCHMENT DELINEATION:
Optimized catchment climate CSV file creation: Smart enough not to recalculate for historical or CMIP scenarios, unless the catchment boundaries or elevation bands have changed. Should greatly speed up subsequent catchment delineations.
Land Slope: Automatic catchment delineation now calculates average slope for each elevation band and land use, putting the value into a new Land Use variable named Slope. It is not used in WEAP's calculations, but you may choose to use it in setting the Preferred Flow Direction for the Soil Moisture Method.
DATA VIEW/EXPRESSIONS:
Key assumption values can be summed in Results View
New ReadFromFile aggregation function: Average of Nonzero Values: Divide the monthly total of the daily values by the number of nonzero values to get the average. You can abbreviate this as "NonZeroAverage"
New ReadFromFile aggregation function: CountAbove: The number of daily values in each month that are greater or equal to than the threshold given in the Method Parameter.
New ReadFromFile aggregation function: CountBelow: The number of daily values in each month that are less than or equal to the threshold given in the Method Parameter.
New ReadFromFile aggregation function: CountEqual: The number of daily values in each month that are exactly equal to the threshold given in the Method Parameter.