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Product documentation

Version history

First release September 2016:
The SAFNWC cloud products have been produced by CMS/SATMOS with the v2013 version of the SAFNWC algorithm for GOES-E, GOES-W, MSG and MTSAT (starting on 5 February, 2014 for MSG/SEVIRI, on 16 December, 2014 for GOES-E, and on 18 December, 2014 for GOES-W and MTSAT). The MSG/SEVIRI data have been produced by ICARE with the v2013 version of the SAFNWC algorithm to cover the period 8 October, 2011- 5 February, 2014.

Cloud product availability

The table below summarizes the product availability since the Megha-Tropiques launch. All products are distributed by ICARE.
For details on differences between versions v2008 and v2013, see information on the Megha-Tropiques Science web site.

SAFNWC_History.PNG

Data access for geostationary cloud products

Information can be found on the data access page for the geostationary cloud products: data access web page.

File description: SAFNWC/CTTH


Product file format: HDF5

Product datasets

Dataset DataType Dimensions units valid_range scale_factor add_offset _FillValue Missing_Output long_name
01-PALETTE uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
02-PALETTE uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
03-PALETTE uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
04-PALETTE uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
CTTH_EFFECT uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
CTTH_HEIGHT uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
CTTH_PRESS uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
CTTH_QUALITY uint16 [?,
?]
NONE NONE NONE NONE NONE NONE NONE
CTTH_TEMPER uint8 [?,
?]
NONE NONE NONE NONE NONE NONE NONE



Product global attributes

Global attribute DataType Dimensions Value
PACKAGE string 1 SAFNWC/MSG
SAF string 1 NWC
PRODUCT_NAME string 1 CTTH
NC int32 1 3712
NL int32 1 3712
XGEO_UP_LEFT float64 1 -5568748.63086
YGEO_UP_LEFT float64 1 5568748.63086
XGEO_LOW_RIGHT float64 1 5565748.2275
YGEO_LOW_RIGHT float64 1 -5565748.2275
TIME_STAMP_UP_LINE string 1 20160101121222
TIME_STAMP_LOW_LINE string 1 20160101120000
PROJECTION_NAME string 1 GEOS<+000.0>
PROJECTION string 1 +proj=geos +a=6378169.0 +b=6356583.8 +lon_0=0.0 +h=35785831.0
GEOTRANSFORM_GDAL_TABLE string 1 -5570248.832537, 3000.403357, 0.000000, 5570248.832537,0.000000, -3000.403357
REGION_NAME string 1 globeM
CFAC int32 1 13642337
LFAC int32 1 13642337
COFF int32 1 1856
LOFF int32 1 1856
NB_PARAMETERS int32 1 5
GP_SC_ID int32 1 323
IMAGE_ACQUISITION_TIME string 1 201601011200
SPECTRAL_CHANNEL_ID int32 1 0
NOMINAL_PRODUCT_TIME string 1 201601011220
SGS_PRODUCT_QUALITY int32 1 55
SGS_PRODUCT_COMPLETENESS int32 1 82
PRODUCT_ALGORITHM_VERSION string 1 2.2

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