Optical design of the CERES telescope

G. Louis Smith; Gary L. Peterson; Robert Benjamin Lee III; Bruce R. Barkstrom

doi:10.1117/12.453463

18 January 2002 Optical design of the CERES telescope

G. Louis Smith, Gary L. Peterson, Robert Benjamin Lee III, Bruce R. Barkstrom

Proceedings Volume 4483, Earth Observing Systems VI; (2002) https://doi.org/10.1117/12.453463
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

The Clouds and Earth Radiant Energy System (CERES) instrument was designed to make measurements of solar radiance reflected from the Earth (0.2 to 0.5 microns) and radiance emitted from the Earch (5.0 to 50+ microns) with 1% accuracies. The CERES design evolved from the Earth Radiation Budget Experiment instrument which had similar objectives. The CERES also had a channel to measure radiance in the 8 to 12 micron window emitted by the Earth for studying the effects of water vapor on the Earth's radiation budget. A CERES instrument flew on the Tropical Rainfall Measuring Mission and 2 are operating on the TERRA spacecraft. One instrument will map the geographical distribution of radiation and the other will measure the anisotrophy of the radiance field. Two CERES instruments will also fly on the AQUA spacecraft. The design features of the telescope and the rationales are described. These aspects of the instrument should be understood by users of the data for a number of purposes. Each channel has its separate telescope to gather radiation onto its detector, which is a thermistor-bolometer. There is a total channel which measures radiances over the range 0.2 to 50+ microns. The shortwave (0.2-5.0 micron) and window (8-12 micron) channel each have filters to provide the desired band. The emitted radiation is computed as the total minus the shortwave radiance.

Citation Download Citation

G. Louis Smith, Gary L. Peterson, Robert Benjamin Lee III, and Bruce R. Barkstrom "Optical design of the CERES telescope", Proc. SPIE 4483, Earth Observing Systems VI, (18 January 2002); https://doi.org/10.1117/12.453463

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available