CHIRPS FAQ - Revision history

Daniella: /* How was CHIRPS funded? */

2026-01-15T22:33:45Z

How was CHIRPS funded?

Pete: /* Via anonymous ftp */

2023-09-18T15:54:49Z

Via anonymous ftp

Pete: /* What are some of the changes in version 1.8? */

2023-09-18T15:53:24Z

What are some of the changes in version 1.8?

Pete: /* What is the spatial density of station data used in CHIRPS? */

2023-09-18T15:51:39Z

What is the spatial density of station data used in CHIRPS?

Pete: /* What is the spatial density of station data used in CHIRPS? */

2023-09-18T15:47:09Z

What is the spatial density of station data used in CHIRPS?

Pete: /* What is the spatial density of station data used in CHIRPS? */

2023-09-18T15:45:53Z

What is the spatial density of station data used in CHIRPS?

Pete: /* Via anonymous ftp */

2023-09-18T15:44:23Z

Via anonymous ftp

Pete: update old chg and ftp-out links

2023-09-18T15:43:53Z

update old chg and ftp-out links

Husak: /* DOI links */

2021-03-30T23:28:15Z

DOI links

Husak: /* DOI links */

2021-03-30T23:26:58Z

DOI links

@@ Line 82: / Line 82: @@
 CHIRPS has been supported by funding from:
 *the U.S. Agency for International Development (USAID)
-*the USAID Famine Early Warning Systems Network (FEWS NET)
+*the Famine Early Warning Systems Network (FEWS NET)
 *the National Aeronautics and Space Administration (NASA)  and
 *the National Oceanic and Atmospheric Administration (NOAA)

@@ Line 11: / Line 11: @@
 ===Via anonymous ftp===
-  ftp chc-data-out.chc.ucsb.edu
+  ftp ftp.chc.ucsb.edu
   username: anonymous
   password: your_email_address

← Older revision		Revision as of 15:53, 18 September 2023
Line 118:		Line 118:
	*Replaced erroneous stations in Tanzania		*Replaced erroneous stations in Tanzania
	Expanded diagnostics, stations by Country plots, EWX rchecks, station comparison/badness* plots, station density maps, pentad and monthly png's of excluded stations,		Expanded diagnostics, stations by Country plots, EWX rchecks, station comparison/badness* plots, station density maps, pentad and monthly png's of excluded stations,
−
−	~~==What are some of the changes in version 1.8?==~~
−	*Zambia was a mess in v1.7 due to accidentally ingesting temperature data as rainfall in our database. This has been fixed.
−	*Pixels near the coastline would alternate between data and bad value over time in v1.7. This has been fixed.
−	*Reran CHIRP from May 2013 through October 2013 to fix problem.
−	*Deleted 251 bad stations from our database.
−	*Fixed another 660 stations with incorrect lat, long and/or country information.
−	*Separated Sudan into Sudan and South Sudan stations.
−	*Reduced the number of anchor stations used to merge station data from ~91k to ~50k. The reduced stations had little/no data.
−	*Added thousands of stations in Colombia, Brazil, Panama and India.
−	*Re-factored and re-organized entire code base to be more streamline and less error prone.
−	*Include browse images for Africa

@@ Line 78: / Line 78: @@
 **These are 10x10 pixel boxes of the station value on top of the CHIRPS field, a "reality check" to see if the stations match the background field.
 **You can zoom in on a location, then cycle through month/years to see how the number of stations changes with time. It is pretty significant in some areas.
 ==How was CHIRPS funded?==

@@ Line 79: / Line 79: @@
 **You can zoom in on a location, then cycle through month/years to see how the number of stations changes with time. It is pretty significant in some areas.
-Also, ftp://chc-data-out.chc.ucsb.edu/pub/org/chg/products/CHIRPS-latest/qc/stations_used/monthly/:
+Also, ftp://ftp.chc.ucsb.edu/pub/org/chg/products/CHIRPS-latest/qc/stations_used/monthly/:
 *Each file represents a single month of CHIRPS for the Globe.
 *There are 5 columns

@@ Line 1: / Line 1: @@
 ==Is there a CHIRPS website?==
-Yes: http://chg.geog.ucsb.edu/data/chirps/index.html
+Yes: https://chc.ucsb.edu/data/chirps
 ==Where can I get CHIRPS data?==
 ===Via a web browser===
-  ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/products/CHIRPS-1.8/
+  http://data.chc.ucsb.edu/products/CHIRPS-2.0/
- ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/products/CHIRPS-2.0/
 ===Via anonymous ftp===
-  ftp chg-ftpout.geog.ucsb.edu
+  ftp chc-data-our.chc.ucsb.edu
   username: anonymous
   password: your_email_address
@@ Line 14: / Line 17: @@
 ===DOI links===
   CHIRPSv2.0: http://chc.ucsb.edu/data/chirps/ #Points to data webpage, see [https://data.chc.ucsb.edu/products/CHIRPS-2.0/ Data section] for download
@@ Line 70: / Line 72: @@
 The closest thing we have available is what we call "reality checks" we post in EWX (Early Warning Explorer).
-You can access EWX [http://chg.geog.ucsb.edu:8080/EWX/index.html here].
+You can access EWX [https://ewx3.chc.ucsb.edu/ewx/index.html here].
 *On the left open up the Africa tab.
 *Then double click on RCHECKS-STNS
@@ Line 77: / Line 79: @@
 **You can zoom in on a location, then cycle through month/years to see how the number of stations changes with time. It is pretty significant in some areas.
-Also, ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/products/CHIRPS-latest/qc/stations_used/monthly/:
+Also, ftp://chg-data-out.chc.ucsb.edu/pub/org/chg/products/CHIRPS-latest/qc/stations_used/monthly/:
 *Each file represents a single month of CHIRPS for the Globe.
 *There are 5 columns
@@ Line 100: / Line 102: @@
 ==How good is CHIRPS?==
-For its intended uses, Seasonal Drought monitoring and Trend Analysis, it is very good; see [ftp://chg-ftpout.geog.ucsb.edu/pub/org/chg/people/AGU-Fall.2014.presentations/AGU.2014.pete_peterson.final.pptx]
+For its intended uses, Seasonal Drought monitoring and Trend Analysis, it is very good; see [ftp://chg-data-out.chc.ucsb.edu/pub/org/chg/people/AGU-Fall.2014.presentations/AGU.2014.pete_peterson.final.pptx]
 ==How do I reference CHIRPS in publications?==

@@ Line 15: / Line 15: @@
 ===DOI links===
   CHIRPSv1.8: http://dx.doi.org/10.15780/G2WC70 #Points directly to FTP
-  CHIRPSv2.0: http://chc.ucsb.edu/data/chirps/ #Points to data webpage, see [http://chc.ucsb.edu/data/chirps/index.html#_Data Data section] for download
+  CHIRPSv2.0: http://chc.ucsb.edu/data/chirps/ #Points to data webpage, see [https://data.chc.ucsb.edu/products/CHIRPS-2.0/ Data section] for download
 ==What is the spatial resolution of CHIRPS?==