IRI Data Library What's New

GPCC Monitoring Product Version 4 and Climatology Version 2011 Precipitation Products

Mon, 05 Mar 2012 20:16:26 GMT

The Global Precipitation Climatology Centre (GPCC) monthly precipitation Monitoring Product Version 4 and the monthly precipitation climatology Normals Version 2011 global gridded precipitation analyses based upon station precipitation data have been added.

Africa Rainfall Climatology Version 2 (ARC2) Daily Precipitation Estimates

Mon, 05 Mar 2012 19:43:42 GMT

The CPC/FEWS Africa Rainfall Climatology Version 2 dataset contains daily precipitation estimates over the African continent at 0.1 deg. lat/lon resolution. Version 2 begins in 1983 and is updated in near real-time. The daily estimates are based upon geostationary IR satellite data and quality controlled gauge observations from the GTS.

NASA GPCP Version 2.2 monthly precipitation dataset

Tue, 11 Oct 2011 20:53:39 GMT

The latest version (version 2.2) of NASA's Global Precipitation Climatology Project (GPCP) monthly precipitation data set has been added to the Data Library. The product includes multiple estimated precipitation variables and error estimates derived from various combinations of IR and microwave satellite and gauge observations.

CPC Unified Gauge-Based Analysis of Global Daily Precipitation

Thu, 09 Jun 2011 13:46:58 GMT

The Climate Prediction Center (CPC) Unified Gauge-Based Analysis of Global Daily Precipitation is an optimal interpolation objective analysis of global daily station precipitation data available at the CPC. It is divided into a retrospective version (RETRO) covering 1979 to 2005, derived from more than 30,000 gauges, and a real-time version (REALTIME) covering 2006 to present, derived from approximately 17,000 gauges. The grid resolution is 0.5 deg. lat/lon. The data set also includes information on the gauge network density and country-to-country variations in the daily reporting period.

NOAA NCEP EMC CFSv2

Mon, 23 May 2011 21:14:54 GMT

Climate Forecast System Version2 is now available as both hindcasts and realtime updates. 9-month hindcasts initiated from every 5th day and run from all 4 cycles of that day, beginning from Jan 1 of each year, over a 29 year period from 1982-2010. These hindcasts are available either as monthly sets of 24-28 ensemble members (ENSEMBLE), or starts every 5 days of four ensemble members (MONTHLY). Realtime updates are daily starts of four ensemble members (MONTHLY_REALTIME).

Latest Versions of Global Precipitation Climatology Centre (GPCC) Precipitation Products

Wed, 06 Apr 2011 13:38:56 GMT

GPCC Monitoring Product Version 3, GPCC Normals Version 2010, and the GPCC Full Data Reanalysis Version 5 global gridded precipitation analyses based upon station precipitation data have been added.

CMAP global precipitation data updated

Mon, 21 Mar 2011 15:02:54 GMT

The latest monthly (January 2011) release of the CPC Merged Analysis of Precipitation (CMAP) has been added.

PRISM Temperature and Precipitation Analysis

Mon, 24 Jan 2011 16:26:21 GMT

The OSU PRISM (Parameter-elevation Regressions on Independent Slopes Model) Analysis of United States Precipitation and Temperature has been updated through Dec 2010, and will be automatically updated each month in the future. PRISM is a knowledge-based system that uses point measurements of precipitation, temperature, and other climatic factors to produce continuous, digital grid estimates of monthly, yearly, and event-based climatic parameters.

World Ocean Atlas 2009 (WOA09)

Wed, 08 Dec 2010 18:30:17 GMT

World Ocean Atlas 2009 (WOA09), from the U. S. National Oceanographic Data Center, is a set of objectively analyzed (1 degree latitude/longitude grid) climatological fields of in situ temperature, salinity, dissolved oxygen, Apparent Oxygen Utilization (AOU), percent oxygen saturation, phosphate, silicate, and nitrate at standard depth levels for annual, seasonal, and monthly compositing periods for the World Ocean. It also includes associated statistical fields of observed oceanographic profile data interpolated to standard depth levels on both 1 degee and 5 degree latitude/longitude grids .

NOAA ESRL 20th Century Reanalysis Version 2 (extended)

Mon, 24 May 2010 14:39:02 GMT

NOAA ESRL 20th Century Reanalysis Version 2 six-hourly data for 1871-2008. The analysis is performed with the Ensemble Filter as described in Compo et al. (2006) based on the method of Whitaker and Hamill (2002). Observations of surface pressure and sea level pressure from the International Surface Pressure Databank station component version 2 (Gleason et al. 2008), ICOADS (Woodruff et al. 2009), and the International Best Track Archive for Climatic Stewardship (IBTrACS, Kruk et al. 2010) were assimilated every six hours.

The IRI Server now has a local copy of all the mean fields; the IRI copy of the spread will be extended as needed. This should address some of the performance problems we were having.