ECMWF-AUX

CloudSat Product Stats - Algorithm Developer Edition
Product Availability: Full mission availability except for anomalies and maneuver data gaps.

The ECMWF-AUX data set is an intermediate product that contains the set of ancillary ECMWF state variable data interpolated to each CloudSat cloud profiling radar (CPR) bin. These data are required for input to the 2B-GEOPROF, 2B-CLDCLASS, 2B-TAU, and 2B-FLXHR algorithms. The ECMWF -AUX product is created by the Generic-AUX Interpolate-to-Reference algorithm. The input data is obtained from the AN-ECMWF dataset provided by the European Center for Medium-Range Weather Forecasts.

Changes/Updates in Algorithm Version P_R05 *

  • The source code was re-written in Python for improved accessibility and flexibility.
  • The calculation of the ECMWF pressure profile was corrected which will affect the vertical profile of every variable when compared to P_R04.
  • Additional AN-ECMWF data fields were added to the ECMWF-AUX product, including:
    • U and V wind components
    • Sea surface temperature
    • 10 meter U and V wind components
* See Section 3.2 and Section 4 in the ECMWF-AUX P_R05 Process Description and Interface Control Document (PDICD) for more details.
 

Process Description and Interface Control Document (PDICD)

File Name Last Modified
ECMWF-AUX P_R04 PCICD (266.78 KB) July 18, 2007

Algorithm Specifications

Data
Popup Type Dimensions Units Range Missing Miss Op Factor Offset
INT(1) nbin,nray 1 0
REAL(4) nbin,nray kg/kg -999 == 1 0
REAL(4) nbin,nray Pa -999 == 1 0
REAL(4) nray K -999 == 1 0
REAL(4) nbin,nray kg/kg -999 == 1 0
REAL(4) nray Pa -999 == 1 0
REAL(4) nbin,nray K -999 == 1 0
REAL(4) nray K -999 == 1 0
Geolocation
Popup Type Dimensions Units Range Missing Miss Op Factor Offset
INT(2) nray meters -9999 to 8850 9999 == 1 0
INT(2) nbin m -5000 to 30000 -9999 == 1 0
REAL(4) nray degrees -90 to 90 1 0
REAL(4) nray degrees -180 to 180 1 0
REAL(4) nray seconds 0 to 6000 1 0
REAL(8) <scalar> seconds 0 to 6e+008 1 0
REAL(4) <scalar> seconds 0 to 86400 1 0

Related News Articles

2007

R04 of ECMWF-AUX, MODIS-AUX, & 2B-CLDCLASS released to General Science Community

September 17, 2007
Release 4 of ECMWF-AUX, MODIS-AUX, and 2B-CLDCLASS is now available to the General Science Community via the data ordering system.
 
All data users are asked to review the known issues page, on-line product specifications, and the summary of changes. If you have any questions concerning the ordering process, contact the DPC.

R04 available to the Science Team

July 19, 2007
Release 4 is now available to the CloudSat Science Team via the data ordering system. This release incorporates several improvements for the data products primarily driven by the development of a surface clutter reduction scheme in 1B-CPR. This affects all products by improving cloud detection near the Earth's surface. In addition, the profile overlap at the beginning and end of each granule has been removed. Granules now start with the first profile on or after the equator on a descending pass and end with the last profile before the equator on the next descending pass. Release 4 also includes the first release of the 2B-GEOPROF-LIDAR product.
 
This annoucement applies to the 1B-CPR, MODIS-AUX, ECMWF-AUX, 2B-GEOPROF, and 2B-GEOPROF-LIDAR products.
 
All data users are asked to review the known issues page, on-line product specifications, and the summary of changes. If you have any questions concerning the ordering process, contact the DPC.