A sphere with three ocean waves in differing shades of blue. Next to the sphere, there is the bolded text "Ocean Color". Under that, there are two acronyms, separated by a vertical pipe: OB.DAAC (Ocean Biology Distributed Active Archive Center) and OBPG (Ocean Biology Processing Group).
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ocssw
V2022
web
ocssw
ocssw_src
src
l2bin
cdata.h
Go to the documentation of this file.
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/* These constants are specified in Fred Patt's cdata.f module. */
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#ifndef _CDATA_H
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#define _CDATA_H
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#define PI 3.1415926535897932384626433832795029L
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#define RADEG (180.0/PI)
/* For radians to degrees conversion */
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#define RE 6378.137
/* Earth equatorial radius (km) */
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#define REM 6371.0
/* Earth mean radius (km) */
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#define FF (1.0/298.257)
/* Earth flattening factor */
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#define OMF2 ((1.0 - FF)*(1.0 - FF))
/* One minus flattening, squared */
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#define OMEGAE 7.29211585494e-5L
/* Earth rotation rate (radians/sec) */
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#endif
