3.3
51 reviews
1K+
Downloads
Content rating
Everyone
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About this app

Welcome to the iRain app. The app is licensed to the Center for Hydrometeorology & Remote Sensing (CHRS) at the University of California Irvine (UCI).

iRain provides access to real-time global high-resolution (~4km) satellite precipitation products from the PERSIANN-CCS (Precipitation Estimation from Remotely Sensed Information using the Artificial Neural Networks - Cloud Classification System), which has been developed by the research team at CHRS. The building block of iRain rests on the satellite precipitation estimates generated by the PERSIANN algorithm which has been under development for over two decades. More detailed information about PERSIANN-CCS can be found at http://chrs.web.uci.edu.

iRain allows users to visualize real-time global satellite precipitation observations and track extreme precipitation events globally. Users can also use the crowdsourcing functionality of the app to report their local rainfall information to supplement our data. A useful feature of iRain is that real-time rainfall observation data can be easily shared through social networks i.e. Facebook, Twitter.
iRain is available for iOS and Android devices.
The web version of iRain is hosted at:
http://irain.eng.uci.edu.

Acknowledgments:
iRain is the product developed by Dr. Phu Nguyen, Assistant Adjunct Professor in the Center for Hydrometeorology and Remote Sensing (CHRS) at UCI and his team, which includes a dedicated group of mostly undergraduate students including David Furman, Phat Huynh, Thanh N. Palacios, Hoang Tran, and April Huie.

Financial support of the following agencies is acknowledged:

- NASA funding resulted in the development of the PERSIANN algorithm and several of its variations.
- ICIWaRM of the US Army Corps of Engineers has provided a major part of support for Mr. Dan Braithwaite, Programmer Analyst III at CHRS.
- The US Army Research Office’s support has resulted in additional refinement of the PERSIANN algorithm
- Cooperation with UNESCO’s G-WADI program has been critical to the dissemination of data worldwide.
- NOAA funding through the Climate Data Record (CDR) program resulted in the PERSIANN-CDR dataset.

The following members of CHRS (former and current) are greatly acknowledged.
Kuolin Hsu, Xiaogang Gao, Bisher Imam, Dan Braithwaite, Hamed Ashouri, Andrea Thorstensen, Scott Sellars, Ali Behrangi.

Special thanks to Hien To, Ph.D. student at USC, for his contribution on the crowdsourcing technologies.

Soroosh Sorooshian, Ph.D. NAE
CHRS Director
Updated on
Oct 29, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.2
49 reviews
A Google user
June 22, 2019
This was exaclty what I was looking for shows actual rain fall over what ever period up to 72 hours from satelite data. I wonder if there is a way to look at historical data, would be nice to be able choose dates.
5 people found this review helpful
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H Sefati
February 10, 2022
Recently, the android version of iRain does not show the accumulated rainfall. Please fix it. I use iRain and FLOWX applications at the same time and prevent the floud damages. It would be great if you combine the ideas of both applications and create a new one. Thank you. Hossein Sefati
4 people found this review helpful
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Rob Kopack
February 22, 2022
On Android device, it simply does not work any more. After deleting the old version and loading latest version , I still get "unable to retrieve data lag time " message, same as before.
5 people found this review helpful
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What's new

Show current rain total overlay text.
Bug Fixes.