Product documentation
Product definition document:
PDD_SAPHIR-L2-RH_V1_R5.pdf (updated in January 2017)Version history:
Version 1.00: Released July 2015. Original versionVersion 2.00: Released November 2015. Modification of format, minor correction in algorithm over land.
Version 3.00: Released March 2017. Compared to the RH estimation scheme used in Version 2.00 which relied on Normal distributions, Version 3.00 product relies on a Beta distribution as its compact support and allowance for asymmetries about the mean are more favorable for describing the relative humidity. The estimation of parameters also provides a characterization of the retrieval uncertainty of RH for every observing pixel of SAPHIR
File description: SAPHIR-L2-RH
Product file format: HDF4
Product datasets
Dataset | DataType | Dimensions | units | valid_range | scale_factor | add_offset | _FillValue | Missing_Output | long_name |
Beginning of group : Geolocation_Fields | |||||||||
UTC_Date_Scan | struct | [4150] | NONE | NONE | NONE | NONE | NONE | NONE | NONE |
POSIX_Date_Scan | float64 | [nscan] | second | NONE | 1.0 | 0.0 | 99999.0 | -999.9 | POSIX_Date_Scan |
Latitude | float32 | [nscan, npix] |
deg | [-90.0, 90.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | Latitude |
Longitude | float32 | [nscan, npix] |
deg | [-180.0, 180.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | Longitude |
Surface_flag | int16 | [nscan, npix] |
None | [0, 1] | 1.0 | 0.0 | 32767 | -99 | Surface_flag |
HONG_flag | int16 | [nscan, npix] |
None | [0, 15] | 1.0 | 0.0 | 32767 | -99 | HONG_flag |
ClrPixel_flag | int16 | [nscan, npix] |
None | [0, 1] | 1.0 | 0.0 | 32767 | -99 | ClrPixel_flag |
End of group : Geolocation_Fields | |||||||||
Beginning of group : Data_Fields | |||||||||
RH | float32 | [nscan, npix, nlayer] |
% | [0.0, 100.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | RH |
Error_Standard_Deviation | float32 | [nscan, npix, nlayer] |
% | [0.0, 100.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | Error_Standard_Deviation |
UNCERTAINTY | float32 | [nscan, npix, nlayer] |
% | [0.0, 100.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | UNCERTAINTY |
MEDIAN | float32 | [nscan, npix, nlayer] |
% | [0.0, 100.0] | 1.0 | 0.0 | 99999.0 | -999.900024414 | MEDIAN |
ALPHA | float32 | [nscan, npix, nlayer] |
None | NONE | 1.0 | 0.0 | 99999.0 | -999.900024414 | ALPHA |
BETA | float32 | [nscan, npix, nlayer] |
None | NONE | 1.0 | 0.0 | 99999.0 | -999.900024414 | BETA |
Quality_Index | int32 | [nscan, npix] |
None | NONE | 1.0 | 0.0 | 2147483647 | -999 | Quality_Index |
End of group : Data_Fields |
Product global attributes
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