TWP-ICE/ACTIVE MONSOON CASE STUDY
Broadband radiative flux profiles from measurements and ECMWF (white symbols) versus sample case study simulations (colored symbols):
Comments:
- Mean profiles are calculated for six 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 three are sequential monsoon events of varying intensity.
- Tropical Cloud Properties and Heating Rate Profiles (TCPRHP) retrievals at Darwin are supplied by Sally McFarlane and Jim Mather. Values represent instantaneous profiles over the DOE ARM site reported at 5-min and 45-m resolution when surface precipitation is < thresholds. Mean values are taken here at each level for each time period.
- ECMWF supplies hourly mean data at 0.56x0.56-degree resolution, from which mean values are plotted over 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 domain-mean values reported at 10-min frequency and 1-km resolution over a domain size of about 37,000 km2. Mean values shown at each level for each time period.
- TCPRHP calculations are for non-precipiting conditions whereas model results include all conditions. Future comparisons will screen model results for non-precipitating conditions and will include the range of instantaneous values produced by the model (rather than the domain-mean values shown here). ECMWF domain-mean values generally agree with model results under monsoon conditions.
