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The Light Fishing Boats Detection from Space

The Light Fishing Boats Detection from Space
Light_fishing_detection.pdf
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Date:
19 April 2021

The Light Fishing Boats Detection from Space

Introduction

Fishing boats that use lights to attract their catch represent an ephemeral source of light at night in some of the seas and oceans of the world. (Davies, T.W. et.al., 2014 and Zhao, X., 2018)

Since the 1970's, lights from fishing boats can be detected with low light imaging data collected at night by sensors flown on satellites. (Croft, 1978)

Milestone

1970's DMSPOLS

The early record of lit fishing boat detections from space was accomplished using data collected by the U.S. Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS).

The OLS uses a photomultiplier tube to intensify the visible band signal at night, enabling the detecting of lights present at the Earth's surface. (Elvidge et al., 2015)

2011 SNPP VIIRS

For many year DMSP OLS was the only source of global low light imaging data. 

The successful launch of the Suomi National Polar Partnership (SNPP) satellite in 2011 marked the advent of a new era in the capability for satellite low light imaging (Miller et al., 2012)

The primary imager on SNPP is the Visible Infrared Imaging Radiometer Suite (VIIRD). (Elvidge et al., 2013)

The VIIRS day/night band (DNB) collects low light imaging data with 45 times better spatial resolution the OLS (Elvidge et al., 2013). VIIRS is capable of detecting vastly more lit fishing boat features when compared to DMSP.

 
 
 
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