TWP-ICE/ACTIVE MONSOON CASE STUDY
ECMWF ice water content (white symbols, mean and maximum) versus sample case study simulations (colored bars, mean to maximum):
Comments:
- Mean and maximum profiles are calculated for nine time ranges. The first three are longer time ranges: (1) all times following an initial 36 hours for model spin-up, (2) six days of monsoon, and (3) six days of suppressed conditions. The second six are 24-hour periods: three sequential monsoon events of increasing intensity, followed by cirrus evolution after the third event.
- ECMWF supplies hourly mean data at 0.56x0.56-degree resolution, from which mean and maximum IWC is plotted for all layers from the three grid boxes centered nearest to and immediately west of the Darwin ARM site, representing a total area of approximately 11,500 km2.
- All measurement data have been downloaded from the DOE ARM data archive (www.arm.gov) and use in publications is subject to the policies described there. Any errors in plotting or representation shown here should be blamed on Ann Fridlind.
- Model results are instantaneous values reported at 3-hr frequency and 1-km resolution (and averaged over lower resolutions) with a domain size of about 37,000 km2. Mean and maximum values are shown at each level for each time period.
- ECMWF values are generally at least an order of magnitude lower than CRM results except at the highest elevations. Agreement worsens with decreasing altitude.
