Comparison of Noaa Avhrr Ndvi to Palmer Drought Indices in North Central Oklahoma

Abstract

This research will attempt to measure how changes in weather conditions, as assessed through various point aggregated Palmer indices, namely, the Palmer Drought Severity Index (PDSI), the Crop Moisture Index (CMI), and Z-lndex --based upon weekly deviations from the long term precipitation and temperature averages -- condition the remotely sensed spectral returns over a largely homogeneous winter wheat growing area of north central Oklahoma.