UPCOMING EVENTS: Office Hours: Land repurposing, Proactive groundwater management strategies; Building conceptual models from airborne and ground electrical datasets; MAR as a strategy for mitigating drought impacts; and more …

March 29:  Repurposing farmland that will be fallowed as part of SGMA

Join Mavens Notebook, the Groundwater Exchange, CivicWell (formerly the Local Government Commission) for the third in a series of groundwater lunch time “office hours.” These reoccurring sessions offer an informal forum to ask experts about Sustainable Groundwater Management Act (SGMA) implementation.

With the implementation of SGMA, estimates are that as much as 750,000 acres of farmland may need to come out of production to bring groundwater basins into balance. However, this doesn’t need to mean unproductive, dusty fields of weeds that worsen air quality. There are options! Potential new uses of agricultural lands include restored habitat corridors, community recreational spaces, low-impact solar and groundwater recharge basins, all of which can help improve air quality and soil health.

On March 29, our guests will be Anna Schiller, Project Manager with the Environmental Defense Fund, and Vicky Espinoza, UC Merced PhD Candidate and YouTube channel CaliWaterAg. They will provide an overview of a new program from the Department of Conservation that provides funding to help land repurposing projects be implemented, and discuss the new guidance document, Community and Grower Engagement in Multibenefit Land Repurposing.

Who should attend: Groundwater Sustainability Agencies (GSAs), beneficial users, tribes, researchers, non-governmental groups, and any other interested community member.

Submit your questions during the event or email them ahead of time to maven@mavensnotebook.com.

Click here to register.

April 4: Office Hours: Proactive groundwater management strategies

On April 4, we’ll be hosting Maurice Hall, Vice-President, Climate Resilient Water Systems, for the Environmental Defense Fund.

Maurice Hall leads EDF’s Water Program, focusing on developing collaborative water management approaches to meet ecosystem needs alongside the needs of farms and cities.

Accurate accounting of groundwater use is critical for effective management. EDF has co-developed an online water accounting platform, which is now being expanded through a partnership with the state, and OpenET, an online platform that makes satellite-based data on water consumed by crops widely access.

Join us on April 4, as we discuss OpenET, groundwater accounting and proactive water management to build resilience beyond SGMA.

Who should attend: Groundwater Sustainability Agencies (GSAs), beneficial users, tribes, researchers, non-governmental groups, and any other interested community member.

Submit your questions during the event or email them ahead of time to maven@mavensnotebook.com.

Click here to register.

March 31: WEBINAR: Electrical Hydrogeology: Building Aquifer Conceptual Models from Airborne and Ground Electrical Datasets

The use of electrical data to provide denser datasets for conceptualizing flow and transport in aquifers is on the rise due to technology improvements and demonstrated cost effectiveness. Airborne electromagnetic (AEM) surveys provide large coverage of aquifer areas to detect regional scale flow paths and dominant fracture pathways.

Ground-based electrical resistivity imaging (ERI) surveys provide controlled higher resolution evaluation of potential drilling targets identified by AEM, to further quantify hydrogeologic parameters and assess validity of drilling targets. Temporal electrical resistivity imaging (TERI) can also be deployed to monitor and observe aquifer flow processes over time. As increasing amounts of data are collected and tested in a specific aquifer, the parameterization across the datasets becomes stronger over time.

This talk will illustrate the integration of airborne and ground electrical datasets with targeted traditional drilling/sampling data, to build robust conceptual models containing well defined preferential pathways at the regional scale.

Click here to register.

APRIL 6: WEBINAR: Managed Aquifer Recharge as a strategy for Mitigating Drought Impacts on Irrigated Agriculture in California

Managed aquifer recharge (or intentional recharge) is a purposeful human intervention designed to supplement natural enrichment processes of groundwater aquifers by various methods. It holds the potential to mitigate the impact of climate uncertainty on irrigated agriculture by replenishing storage levels in depleted groundwater sources, the economic value of which increases during droughts.

We use a high-resolution dynamic regional hydro-economic framework that endogenizes farming decisions in response to water quantity-quality changes, as well as complex hydrogeological principles to analyze several policy and climate scenarios applied to the Kings Groundwater Basin in California.

Our analysis demonstrates that intentional recharge is of benefit to the region, increasing in value under sustainable groundwater management derived from recent legislation in California. We also find that recharge strategy as well as the impact of climate uncertainty on regional welfare are sensitive to the prevailing institutional arrangements. Regional cooperation is essential, and its importance depends on climate conditions and existing policies.

Click here to register.

Find more groundwater events on the Groundwater Exchange’s calendar.

UPCOMING EVENTS: SGMA Land Repurposing Program workshops; Fortifying water resilience; Sensitivity analysis to guide future data acquisition

Multibenefit Land Repurposing Program Stakeholder Workshops

The Department of Conservation will hold two workshops to hear what stakeholders would like to see in their upcoming Multi-benefit Land Repurposing Program.  These workshops are designed to give stakeholders the opportunity to provide input into the Department of Conservation’s proposed Multi-benefit Land Repurposing Program before program guidelines are developed.

Everyone is encouraged to attend all or a portion of a workshop, as time allows. A brief overview of proposed program components will be provided at the top of each hour during each workshop, with the remainder of the time available for discussion and questions.

WORKSHOP #1: November 30, 10am – 12pm.  Click here to register.
WORKSHOP #2: December 2, 5pm to 7pm.  Click here to register.

Water in a Warming World – Fortifying California’s Water Resilience

As climate change brings more extreme and variable weather, now is the time to work together to boost California’s water resilience. As we plan ahead for the next wet year, we must think holistically so we can replenish our aquifers – which provide 85% of Californians with a portion of their water supply – while being protective of water quality, providing healthy wildlife habitat, and ensuring our downstream communities are safe from flooding.

Join Sustainable Conservation on Monday, December 6th from 2:00 – 3:30 PM for the final webinar in our Water in a Warming World series, Fortifying California’s Water Resilience. Sustainable Conservation’s Director of Resource Stewardship and leader of our water team, Daniel Mountjoy, will sit down with a farmer that pioneered on-farm recharge, the Director of The Nature Conservancy’s California Water Program, and the Supervising Engineer at the California Department of Water Resources to discuss the best practices for groundwater recharge and the importance of taking a multi-benefit approach.

Click here to register.

Modeling under SGMA: Using sensitivity analyses to guide future data acquisition

Numerical groundwater flow models have played an integral role in the implementation of the Sustainable Groundwater Management Act (SGMA) across the State.

These flow models provide a framework for characterizing the effect of water supplies, demands, and management strategies on a Basin’s ability to operate within its sustainable yield. Confidence in these models are conditioned on available monitoring data that constrain historical simulation results.

In Basins where this monitoring data is limited, Groundwater Sustainability Agencies (GSAs) are encouraged to identify methods of reducing data gaps and refining model predictions as part of their path towards achieving or maintaining Basin sustainability. Future projects, data collection, and model refinement can be facilitated through assessments of a numerical model’s sensitivity to specific processes and properties.

This talk presents an approach for using sensitivity analyses as a method of identifying data acquisition strategies that provide the greatest benefits during a GSA’s path towards sustainability.

December 15, 12pm to 1pm
Click here to register.