RFE2: Difference between revisions
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== Getting Access == | == Getting Access == | ||
Completely open access from ftp://ftp.cpc.ncep.noaa.gov/fews/fewsdata/africa/rfe2. | Completely open access from ftp://ftp.cpc.ncep.noaa.gov/fews/fewsdata/africa/rfe2/bin. | ||
== File Format == | == File Format == | ||
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== Example Code == | == Example Code == | ||
=== Java Tool === | === Java Tool === | ||
[https://mrcdata.dide.ic.ac.uk/resources/ | [https://mrcdata.dide.ic.ac.uk/resources/rfe2_java.zip Download] a little Java tool here for working with the .gz files that RFE2 is packaged in. See the JAVA file for the source-code. | ||
Usage:- | Usage:- | ||
java ExportRFE - shows all the options | java ExportRFE - shows all the options | ||
Latest revision as of 16:32, 9 February 2017
About
This dataset is called "CPC/Famine Early Warning System Daily Estimates", also known as RFE2, Rainfall Estimates. The data are calculated by merging GTS gauge observations and 3 kinds of satellite estimates. (GPI, SSM/I and ASMU).
Getting Access
Completely open access from ftp://ftp.cpc.ncep.noaa.gov/fews/fewsdata/africa/rfe2/bin.
File Format
| Pixel resolution | 751 x 801 |
|---|---|
| Geographical resolution | 0.1º x 0.1º |
| Longitude range of first pixel | 20.0ºW - 55.0ºE |
| Latitude range of first pixel | 40.0ºN - 40.0ºN |
| Data / units: | mm (per day) |
| No Data Value: | -999 |
- Each file is a daily total, compressed with gzip. (A simple 7z x using 7-zip from the command-line will unzip it).
- 2004/07/24 and 2007/11/13 are missing.
- Important: the data is ordered in rows starting at the South-most.
- And also, there range is supposed to be <300mm. I found some insane values - (1.2E7, 1.1E8, 2005/04/08 and 2005/08/13). Recommendation from NOAA was to apply the 300mm ceiling.
Example Code
Java Tool
Download a little Java tool here for working with the .gz files that RFE2 is packaged in. See the JAVA file for the source-code. Usage:-
java ExportRFE - shows all the options
java ExportRFE /series /lon:-15.5 /lat:25.2 /start:20050101 /end:20050228 will print a list of values for the given location, between the given days. add /accmonthly for monthly accumulation and daily average for each month. java ExportRFE /png /start:yyyymmdd /end:yyyymmdd will produce png file for that range. Add /plain if you don't want any text. Add /out:path to specify where the pngs go. java ExportRFE /tsv /start:yyyymmdd /end:yyyymmdd will produce tab-separated text grids for each day. Add /out:path to specify where the pngs go.
Citation
No citation information given - only: "Please refer to this product as the CPC/Famine Early Warning System Daily Estimates". Contact information: Nick Novella, NOAA / NWS / NCEP / Climate Prediction Center, NOAA Center for Weather and Climate Prediction, 5830 University Research Court, College Park, MD 20740, (o) 301.683.3458. E-mail: Nicholas.Novella@noaa.gov