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Friday, July 22 • 9:00am - 10:30am
Workshop to develop CRT (Climate Resilience Toolkit) Case Studies

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This Workshop continues the theme of a similar session (jointly Ag&Climate Cluster and Energy & Climate Workgroup) at the ESIP Winter Meeting in Washington, DC on CDI (Climate Data Initiative), CRT (Climate Resilience Toolkit), and ongoing work that could form the bases for CRT Case Studies. Workshop agenda: - Introduction to the workshop, logistics, etc. - Connection with the Telling Your Science Story session; larger goal to establish a CRT pipeline at the ESIP level - Introduction to CRT, LuAnn Dahlman - Brief description of work related to agriculture that forms the basis for a potential CRT Case Study --- Forrest Melton (NASA Ames) et al. Satellite Mapping of Drought Impacts on Agricultural Production and Land Fallowing in California's Central Valley The ongoing drought in California substantially reduced surface water supplies for millions of acres of irrigated farmland in California's Central Valley. Rapid assessment of drought impacts on agricultural production can aid water managers in assessing mitigation options, and guide decision making with respect to mitigation of drought impacts. Satellite remote sensing offers an efficient way to provide quantitative assessments of drought impacts on agricultural production and increases in fallow acreage associated with reductions in water supply. A key advantage of satellite-based assessments is that they can provide a measure of land fallowing that is consistent across both space and time. We describe an approach for monthly and seasonal mapping of fallow agricultural acreage developed as part of a joint effort by USGS, USDA, NASA, and the California Department of Water Resources to provide timely assessments of land fallowing during drought events. This effort has used the Central Valley of California as a pilot region for development and testing of an operational approach. To provide quantitative measures of fallow agricultural acreage from satellite data early in the season, we developed a decision tree algorithm and applied it to timeseries of data from Landsat TM, ETM+, OLI, and MODIS. Our effort has been focused on development of indicators of drought impacts in the March - September timeframe, based on measures of crop development patterns relative to a reference period with average or above-average rainfall. To assess the accuracy of the algorithms, monthly ground validation surveys were conducted across 670 fields from March - September in 2014, 2015, and 2016. We present the approach, along with updated results from the accuracy assessment, and data and maps of land fallowing in the Central Valley. --- Phu Nguyen (UC Irvine) et al. RainSphere - a new tool for analysing global remotely sensed rainfall estimates RainSphere (hosted at http://rainsphere.eng.uci.edu) has recently been developed by the Center for Hydrometeorology and Remote Sensing (CHRS) at the University of California, Irvine for scientific studies and applications, using precipitation estimation from remotely sensed Information using Artificial Neural Networks - Climate Data Record (PERSIANN-CDR, Ashouri et al. 2015). RainSphere has functionalities allowing users to visualize and query spatiotemporal statistics of global daily satellite precipitation for the past three decades. With a couple of mouse-clicks, users can easily obtain a report of time series, spatial plots, and basic trend analysis of rainfall for various spatial domains of interest, such as location, watershed, basin, political division, and country, for yearly, monthly, monthly by year, or daily. RainSphere allows data to speak for themselves in a way that is easily understandable by the public, thus helping to increase the number of informed participants in the conversation on climate and climate variability. - Two concurrent breakout groups, one for each of the presenters and led by them. The groups discuss and draft the incipient CRT Case Studies, using the CRT "templates." - The groups recombine and share results, thoughts, next steps, etc.

Friday July 22, 2016 9:00am - 10:30am
Grand Ballroom

Attendees (7)