Trends in Satellite Remote Sensing for Precision Agriculture

Aerosol Satellite Remote Sensing Aerosol Satellite Remote Sensing

A new aerosol retrieval algorithm is presented which computes the spectral opti-cal depth over the ocean from spaceborne radiometers. It includes both multiplescattering and the bi-directional re ectance of the ocean surface. The algorithmis applied to data from the Along Track Scanning Radiometer 2 (ATSR-2).This radiometer aboard the ERS-2 satellite has 4 bands in the visible a...

Satellite remote sensing reveals regional tropospheric aerosol trends.

The Global Aerosol Climatology Project data product based on analyses of channel 1 and 2 AVHRR radiances shows significant regional changes in the retrieved optical thickness of tropospheric aerosols which had occurred between the volcano-free periods 1988-91 and 2002-05. These trends appear to be generally plausible, are consistent with extensive sets of long-term ground-based observations thr...

Soil macronutrient sensing for precision agriculture.

Accurate measurements of soil macronutrients (i.e., nitrogen, phosphorus, and potassium) are needed for efficient agricultural production, including site-specific crop management (SSCM), where fertilizer nutrient application rates are adjusted spatially based on local requirements. Rapid, non-destructive quantification of soil properties, including nutrient levels, has been possible with optica...

Satellite Remote Sensing

Satellite Remote Sensing