NASA VIIRS Vegetation products now available. Updates coming soon.
Thank you for participating in our SURVEY . Your input will help the IRI gain a deeper understanding of our user base and utilization of the IRI Data Library and Maprooms. This knowledge will ena...
NOAA CPC Blended OLR version 1 products now available
FEWSNET soil-water products for Africa now available.
Some MODIS V6 Terra Regions were added to the DL: USGS LandDAAC MODIS 1km 8day version_006 Terra SSA Night LST views
Now serving UEA CRU TS4.05
The Butterworth low-pass filter code has been revisited to support time series of many points like in the example above. This comes with a more robust way of computing the solution. The 3 padding...
New PISCO data products from Peruvian SENAMHI: precipitation, temperature, evapotranspiration, since 1981, daily and monthly, at 0.1˚ spatial resolution. Check it out at http://iridl.ldeo.colu...
With sadness in our hearts, we remember M. Benno Blumenthal, who died Saturday 15th at night peacefully and with family. We will forever be grateful to Benno for creating the Data Library, for hi...
Ma Première Map Room : The Maproom Development Tutorial is now available in French (en Français) and both English and French version are improved with some text editing and a Quick Steps sect...
New Maproom section: Subseasonal Forecasts : Recently, a prototype S2S forecast system has been designed at IRI to generate calibrated multi-model ensemble forecasts for tercile precipitation ...
UEA CRU TS4.01 DATASET The University of East Anglia (UEA) Climatic Research Unit (CRU) Time-Series (TS) Version 4.01 of High Resolution Gridded Data of Month-by-month Variation in Climate (Ja...
Function Documentation : A FIX HAS BEEN APPLIED TO ONSETDATE FUNCTION after the identification of algorithm errors and a bug. All users having used the function should revisit their analysis. T...
How to make MJO Diagram with the DL some new and updated functionality facilitate the generation of MJO Diagrams. Check out the new Tutorial .
lengthLongestSpell views New Ingrid function computes the length of longest spell in a season, yearly, from daily data. Spells are defined in the function arguments according to a threshold and...
Parametric probability of exceeding and distribution graphics are back in the Flexible Forecast for both precipitation and temperature. This seasonal forecasting system consists of probabilistic...
New seasonal Maximum and Minimum functions available in the DL. See documentations here: http://iridl.ldeo.columbia.edu/dochelp/Documentation/details/index.html?func=seasonalMax and there: ...
There is now an Ingrid function to compute WASP index. See documentation here: http://iridl.ldeo.columbia.edu/dochelp/Documentation/details/index.html?func=wasp
Ingrid Water Balance function has been updated with 2 main new options: use a gridded TAW as input (as opposed to geometry-wise); and daily forecasts of climate variables as inputs, with a daily ...
New Ingrid function: onsetDate : Computes yearly onset dates from daily rainfall data Example: http://iridl.ldeo.columbia.edu/expert/SOURCES/.NASA/.GPCP/.V1DD/.V1p2/.prcp/X/27/49/RANGE/Y/-5/...