iRain UCI2.3.6 - App Store

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.
The web version of iRain is hosted at:
http://irain.eng.uci.edu.

Acknowledgments:
The iRain system 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 Phat Huynh, Thanh N. Palacios, Hoang Tran, and April Huie.
The iRain mobile app was developed by David Furman.

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

Version History Bug fixes & stability improvements 2.3.6 08/08/2023 Bug fixes & stability improvements 2.3.5 09/12/2021 Bug fixes & stability improvements 2.3.4 08/29/2021 Updated Yahoo weather API. 2.3.3 01/15/2019 Fixed extreme event image time.
Added text for rain total layer. 2.3.2 11/14/2018 Minor bugs fixed. 2.3.1 10/18/2018 • Subscribe to rainfall notifications by pressing and holding on the map!

• Added a button to share iRain from its settings page.

• Bug Fixes 2.3.0 11/03/2017 • New setting for switching between inches and millimeters.
• Loading extreme events has been made more stable.
• Improved usability with slower network connections.
• Slight visual redesigns.
• "Centroids" renamed to "Extreme Events".
• General stability improvements. 2.2.0 09/07/2017 • The map now moves to the user's location as soon as location data is available upon startup of the app.
• Fix to reports not appearing correctly. 2.1.2 03/02/2017 • Bug Fixes
• Moved the legend to the bottom right of the screen to be less intrusive 2.1.1 01/27/2017 iRain now has a new timeline feature!
Tap on any point to view historical rainfall data over the last 72 hours
Swipe right on the timeline after tapping on the map to view a weather forecast for the next 7 days.

Other changes in this version include various bug fixes. 2.1.0 01/16/2017 • Loading centroids has been made more reliable.
• Added the version number at the bottom of the "About" page.
• Improved the animation of the search bar.
• Various other slight fixes. 2.0.2 10/29/2016 iRain has been redesigned with a new, cleaner interface. Visualization, tracking, and statistics of global real-time extreme rainfall events are now available in the app. Rainfall events can now be viewed as an animation to observe their change over time, as an accumulation of rain or as a time lapse.
Precise measurement of rainfall at a given point can be observed by zooming in to the map. 2.0 10/25/2016 Location bug fixed.
Sign in session removed. 1.0.3 07/01/2015 Location service bug fixed 1.0.2 06/05/2015 - Fixed bug on location update 1.0.1 05/05/2015 1.0 04/25/2015