POCIS: a system to generate pseudo top-of-atmosphere ocean color image for sensor and system evaluation

ZhongPing Lee; Robert Arnone; Ronnie Vaughan

doi:10.1117/12.881155

3 November 2010 POCIS: a system to generate pseudo top-of-atmosphere ocean color image for sensor and system evaluation

ZhongPing Lee, Robert Arnone, Ronnie Vaughan

Proceedings Volume 7858, Remote Sensing of the Coastal Ocean, Land, and Atmosphere Environment; 78581M (2010) https://doi.org/10.1117/12.881155
Event: SPIE Asia-Pacific Remote Sensing, 2010, Incheon, Korea, Republic of

Abstract

It requires frequent and high-resolution measurements of biogeochemical properties of the oceans in order to obtain the status of the ecosystems and evaluate its role in modulating the climate. Because of the limited coverage and high cost, such a task could not be achieved via traditional ship surveys. Satellite sensors, because of its high revisit time and synoptic coverage, can provide key measurements to remedy the weakness of ship surveys. To ensure reliable and consistent measurements from an ocean color satellite, it not only requires the sensor be well designed and calibrated, also requires the processing software be robust for a wide range of ecosystems. All these require adequate data in order to evaluate and characterize the whole system. Such data, however, will not be available until the sensor is functioning properly in the sky. To overcome this dilemma, we developed POCIS (Pseudo Ocean Color Image Simulator), which can generate top-of-atmosphere ocean color images based on sensor specs. Such images, which can be both regional and global, can then be fed into current/future processing system to generate proxy products, thus not only help to ensure the readiness of the processing system, but also help to identify weakness and strengths of such a system before its launch, and setup the bases for eventual improvements. Details of POCIS, along with examples of proxy VIIRS image products, are presented to demonstrate its capabilities and potentials.

Citation Download Citation

ZhongPing Lee, Robert Arnone, and Ronnie Vaughan "POCIS: a system to generate pseudo top-of-atmosphere ocean color image for sensor and system evaluation", Proc. SPIE 7858, Remote Sensing of the Coastal Ocean, Land, and Atmosphere Environment, 78581M (3 November 2010); https://doi.org/10.1117/12.881155

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KEYWORDS

MODIS

Sensors

Remote sensing

Satellites

Reflectivity

Data conversion

Image sensors

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