Creating Surface Flux Maps from Airborne Measurements: Application to the Mackenzie Area GEWEX Study MAGS 1999

摘要: The objective of this study is to produce two-dimensional maps the sensible and latent heat fluxes from airborne measurements, based on analysis a flight pattern, called grid flights. A footprint model with along-wind cross-wind components was used project measured onto surface map. method applied measurements over Arctic tundra during Mackenzie Area GEWEX (Global Energy Water Cycle Experiment) Study (MAGS) 1999. resulting flux estimates were computed by integration wavelet transform, corrected for long wavelength losses using information 100 km regional runs that conducted close random error estimated length represented in each map element, resolution 3 × chosen order keep average below 25%. smaller factor 1.4 average. An at different altitudes showed no significant increase measurement heights 90 m. Thus, between 48 64 m not vertical divergence. provide quantitative energy exchange atmosphere snow melt period an environment, which are well-suited calibration validation numerical models.