BROADBAND IR MEASUREMENTS FOR MODIS VALIDATION Reporting Period: 10/1/98 – 9/30/99 Renewal Period: 10/1/99 – 9/30/00

• Main Author: Andrew T. Jessup
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 1999
• Subjects: Pacific; North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.138.8570; http://cirims.apl.washington.edu/papers/jessup_n1.pdf

The goal of this research is to provide in situ calibrated IR measurements of SST to augment the pre- and post-launch validation plan for the MODIS SST algorithm. The instrument system we are developing is called the Calibrated InfraRed In situ Measurement System, or CIRIMS. In early summer 1998, we deployed the CIRIMS prototype A on the R/V Ron Brown during the GAS EX 98 cruise in the North Atlantic. The purpose of this deployment was to evaluate a design for protecting the sensors using an IR transparent window and to compare our measurements to those of the M-AERI, which is the primary MODIS validation instrument. The results of the data analysis will be reported by Wick and Jessup [1999] at IGARSS ‘99. During the current reporting period, we developed the CIRIMS prototype B and performed extensive laboratory and outdoor testing in order to evaluate the design. The results of this testing will be presented by Jessup [1999] at IGARSS ’99 and are summarized below. Based on the progress over the past year, we refined the design and are now manufacturing CIRIMS production units #1 and #2 that will be deployed at sea during the post-launch period for Terra. At the end of June 1999, the two sea-going units will be ready for local testing, which will include laboratory, rooftop, and sea trials on an Applied Physics Laboratory (APL) vessel in Puget Sound. The first open ocean deployment in the post-launch period will be a 30-day cruise in November 1999 on the R/V Ron Brown from Seattle to the equatorial Pacific, returning to San Diego. The time period for this deployment was chosen to obtain a significant amount of early data for MODIS calibration and validation. After this first at-sea deployment, we will coordinate with Peter Minnett of MOCEAN (University of Miami) to routinely deploy the CIRIMS with the M-AERI. The CIRIMS homepage