Product documentation

Version history

Version 1-03: Released September 2016. First public version of GEOCLD-SAFNWC products produced by ICARE with the v2008 version of the SAFNWC algorithm.

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: MT_GEOCLD-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 [?,
?]
% [10 30] 5.0 -50.0 0 0 Effective Cloudiness
CTTH_Height uint8 [?,
?]
m [ 10 127] 200.0 -2000.0 0 0 Cloud Top Height
CTTH_Press uint8 [?,
?]
hPa [10 63] 25.0 -250.0 0 0 Cloud Top Pressure
CTTH_Quality uint16 [?,
?]
NONE [ 1 11759] 1.0 0.0 0 0 CTTH Quality Flags
CTTH_Temper uint8 [?,
?]
K [ 1 255] 1.0 150.0 0 0 Cloud Top Temperature
Spectral_Channels struct [?] NONE NONE NONE NONE NONE NONE NONE



Product global attributes

Global attribute DataType Dimensions Value
Icare_ID string 1 RFU
File_Name string 1 MT_GEOCLD-SAFNWC-MSG2_2009-06-01T03-00-00_CTTH-globe+000.0-G_V1-03.h5
Mission string 1 MT
Product_Name string 1 GEOCLD-SAFNWC
ByProduct_Name string 1 CTTH
Product_Description string 1 Effective cloudiness and cloud top pressure, height and temperature from geostationnary satellites
Product_Version string 1 1.3
Software_Version string 1 1.3.0
Production_Center string 1 ICARE Data and Services Center
Production_Date string 1 2011-11-09T14:04:10Z
Contact string 1 contact@icare.univ-lille1.fr
Reference string 1 SAF/NWC/CDOP/MFL/SCI/ATBD/01 - Algorithm Theoretical Basis Document for Cloud Products (CMa-PGE01, CT-PGE02 & CTTH-PGE03 v1.4)
Slot_Nominal_Date string 1 2009-06-01T03:00:00Z
Beginning_Acquisition_Date string 1 2009-06-01T03:00:10Z
End_Acquisition_Date string 1 2009-06-01T03:12:40Z
Geographic_Projection string 1 GEOS
Region_Name string 1 globe+000.0
Sensors string 1 msg2
SAFNWC_Algorithm_Version string 1 1.4
HDF_Version string 1 HDF5 v1.8.1
Run_Statistics string 1 ----------- CTTH Internal Quality Check Results ----------

Region processed : globe+000.0
Region channel flag : VIS_IR
Region centre : line 1856 column 1856
Product size : lines 3712 cols 3712
Product time slot : 200906010300

----------------------------------------------------------
NWP availability 100.00%
RTTOV availability 100.00%
GEOSTAT availability 99.96%
----------------------------------------------------------
CTTH quality 63.81%
CTTH completeness 86.55%
----------------------------------------------------------
opaq_rttov 50.92%
opaq_norttov 0.00%
Intercept_11_134 0.23%
Intercept_11_62 2.51%
Intercept_11_73 8.13%
Ratio_11_134 0.00%
Ratio_11_62 0.00%
Ratio_11_73 0.78%
Intercept_11_62_73 15.38%
Intercept_11_62_134 0.01%
Intercept_11_73_134 2.47%
Intercept_11_62_73_134 5.07%
opaq_rttov_inversion 14.51%
spare 0.00%
spare 0.00%
----------------------------------------------------------
Processed FOVS with NWP quality information 100.00%
Processed FOVS with GEOSTAT quality information 100.00%
----------------------------------------------------------
Sub_Satellite_Longitude float64 1 0.0
Projection_Longitude float64 1 0.0
Nadir_Pixel_Size float64 1 3.0
Number_of_Columns_in_Region int32 1 3712
Number_of_Rows_in_Region int32 1 3712
Parameters_Count int32 1 5
SGS_Product_Quality int32 1 64
SGS_Product_Completeness int32 1 87

Autodpc 1.2.4 - © 2012 - ICARE Data and Services Center