UC GIS Week

Interactive, Data Informed Fertilizer Applications for California Farmers

One of the most important but difficult decisions farmers make is how much fertilizer to apply and when to apply it. To address this problem in California’s small grain crops, we developed an interactive website that provides customized, site-specific nitrogen (N) fertilizer recommendations. In this presentation we describe how we integrated spatial statewide weather and soil data with user-supplied, field-specific measurements in order to provide N fertilizer recommendations.

Modeling dynamic change of marijuana use disorder in California

As marijuana use has been legalized in many states, it is important to understand the changing dynamic of the risk in marijuana use disorder (MUD). This talk explores the temporal pattern of emergency department and hospitalization discharges involving MUD at ZCTA level during 2010-2019 in California. We applied shape-based time-series clustering to identify ZCTAs with similar changing pattern over time. The prevalence of ED discharge involving MUD increased during 2010-2016 and became stable from 2017, while hospitalization discharge started decreasing since then.

Inequalities in the Distribution of Mental Health Facilities

I will present on the Geography SRP 99 research project I completed in Spring quarter on the distribution of mental health facilities in Santa Clara County (but I also plan to expand to discuss similarities and differences with LA County). I will discuss the obstacles I overcame as I used various geoprocessing tools in ArcMap and statistical tools in GeoDa to analyze the way mental health facilities are distributed in the counties, and the implications this has for planning and legislation.

GIS & community homelessness solutions: creating mobile apps for outreach and environmental monitoring

In collaboration with PATH San Diego and the River Park Foundation, HHUB San Diego (The Homelessness Hub, housed by UC San Diego's Urban Studies Department) worked to build a mobile survey and outreach tool with the Esri ArcGIS Suite for data collection and homelessness outreach in the San Diego riverbed. Current implementations built on Survey123 have been used for data collection since March 2021, future implementations in development are being built on Field Maps for further collection efforts, including a riverbed wastewater study.