By Topic

An information theory approach for evaluating Earth radiation budget (ERB) measurements: nonuniform sampling of diurnal longwave flux variations

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Halyo, N. ; Inf. & Control Syst. Inc., Hampton, VA, USA ; Direskeneli, H. ; Barkstrom, B.R.

Satellite measurements are subject to a wide range of uncertainties due to their temporal, spatial, and directional sampling characteristics. An information theory approach is suggested to examine the nonuniform temporal sampling of Earth radiation budget (ERB) measurements. The information (i.e. the entropy or uncertainty) before and after the measurements is determined, and the information gain is defined as a reduction in the uncertainties involved. A stochastic model for the diurnal outgoing flux variations that affect the ERB is developed. Using Gaussian distributions for the a priori and measured radiant exitance fields, the information gain is obtained by computing the a posteriori covariance. The information gain for the monthly outgoing flux measurements is examined for different orbital parameters and orbital tracks

Published in:

Geoscience and Remote Sensing, IEEE Transactions on  (Volume:29 ,  Issue: 4 )