WEAP

SEI brief / Policy-makers can now model the effect of management options on the availability of habitat and the viability of aquatic species.

SEI brief / SEI experts analyse how water efficiency and storage methods can help Rwanda meet its sustainable development and economic growth goals.

Journal article / This study analyses how managed aquifer recharge might affect irrigated agriculture in California's Kings Groundwater Basin during drought.

SEI brief / Urban and agricultural growth in Bolivian dry forests are putting pressure on groundwater and surface water supply. SEI research seeks to quantify the problem.

Journal article / This article discusses how different climate scenarios affect the water-energy nexus in California, employing the WEAP modelling tool.

Journal article / SEI researchers quantified the impact of irrigation and climate variability on the fluctuation of water levels in Lakes Titicaca and Poopó by applying WEAP.

Journal article / This study demonstrates how incorporating social factors into water modelling can lead to a more equitable water supply.

Other publication / About using the A web‐based platform called Supporting Water Resources Management (SWARM).

Journal article / This study finds that water management is a larger threat to rice and ecosystems than the warming temperatures of climate change.

SEI brief / This article provides insights from a case study testing the Tandem framework for the co-design of climate services in Colombia's Campoalegre River Basin.

SEI working paper / Investigadores de SEI presentan avances sobre la modelación estratégica utilizando el Sistema de Evaluación y Planeación del Agua (WEAP)

SEI brief / SEI built WEAP models for seven major river basins, enabling the exploration of policies and investments under various climate futures.

SEI brief / The Sacramento Water Allocation Model, known as SacWAM, mimics one of the most complex water systems in the US.

SEI brief / Policy-makers can now model the effect of management options on the availability of habitat and the viability of aquatic species.

SEI brief / RDS helps stakeholders create a shared mental model of available opportunities and potential trade-offs for various objectives.

SEI brief / SEI researchers used the Gridded Meteorological Ensemble Tool for a water balance study in Bolivia, marking the first time the tool was applied outside the US.

SEI working paper / This paper describes the development of poverty-related indicators in SEI's Water Evaluation And Planning (WEAP) tool.

SEI report / An overview of the development scenarios for Rwanda SEI researchers co-created with stakeholders and explored using the LEAP and WEAP tools.

Journal article / This study examines how the continued development of hydroelectric dams could affect one of the largest wetland systems in South America.

Journal article / This paper evaluates a coupled water planning and crop model for irrigated agriculture that researchers deployed in Yolo County, California.

Other publication / This document draws on SEI experience with WEAP and LEAP to provide guidance for mainstreaming gender and social equity issues into modelling studies

SEI report

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Other publication

Journal article / This paper describes the modelling of the Quiroz-Chipillico watershed in Peru to simulate impacts of possible changes within the hydrological system.

SEI brief

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Journal article

SEI brief / Read our fact sheet introducing SEI's flagship WEAP tool and what it can do for water planners.

Feature / Water managers must balance the needs of aquatic habitat and human supply. SEI Scientist Doug Chalmers explains a new approach to help resolve that tension.

Feature / A new feature of SEI’s WEAP tool allows users to gain insight on water stress at the local scale, enabling accurate SDG reporting and regional water planning.

Feature / SEI Senior Scientist Laura Forni explains why gender and income inform inequities in access to irrigation water in a rural Cambodian watershed.

Feature / SEI Senior Scientist Chuck A. Young explains why California saw severe water shortages this year and how better forecasting can help alleviate those challenges.

Feature / SEI's flagship water modelling tool helped a San Jose-area water district identify an opportunity to help protected steelhead in the wake of dam construction.

Perspective / This perspective suggests how to better integrate water modelling into policymaking in countries of the Asia-Pacific.

Feature / The eWRIMS Analyzer transforms California’s water rights data into accessible reports on monthly water use in each watershed.

Feature / More than 100 updates to SEI's water modelling tool will bring faster and more precise results for its 40 000 users.

Perspective / This World Water Day, six researchers share insights on the value of water and lessons learned on how to equitably manage and protect this valuable resource.

Feature / We propose five concepts that policymakers and planners can apply to help ensure water resilience amid climate change.

Perspective / Clean, accessible water is a human right, and universal access is essential to global health. Effective water planning can help us get there.

Feature / SEI's Marisa Escobar, Alison Dyke, and Hector Angarita introduce the new SEI Initiative on Water Beyond Boundaries.

Feature / SEI Senior Scientist Brian Joyce explains the value of water models in an interview, the first in a series from the SEI US Water Program.

Feature / In this webinar, SEI scientists explain how to use SEI's two flagship modelling tools for integrated analyses of energy and water systems.

Feature / The de facto tool for water planning now calculates scenarios ten times faster than before.

Perspective / The Mara River is a crucial water source for farms, villages and ecosystems. Researchers and stakeholders are working together to ensure it remains sustainable.

Feature / SEI is working with the U.S. Department of Energy and the California and Chinese governments to help policy-makers plan for resilient water and energy systems.

Feature / SEI teamed up with local partners to build a new water model in a Bolivian community. The results illuminate a path for policies that help the most vulnerable.

Feature / SEI's Charles Young and Stantec's Andy Draper won for their work on an unprecedented water model of the Sacramento-San Joaquin Delta.

Perspective / SEI researchers Felipe Benavides and Jeanne Fernandez reflect on a recent tour of Bolivia's Tupiza watershed, where residents have "lost everything."

Perspective / SWARM, a new platform for water management, combines hydrological modelling and stakeholder input to improve river basin management in Southeast Asia.

Feature / SEI experts explain how a new project will help Bolivia connect sanitation with watershed management.

Feature / Farmers in Bolivia are struggling as their water supply becomes increasingly unreliable. Could better models lead to policies that help the most vulnerable?

Perspective / An innovative water management exercise fostered hands-on learning in Cambodia at a workshop held through the Sustainable Water Partnership.

Feature / SEI researchers take a first step toward water analysis that considers inequality, by developing poverty-related indicators in WEAP.

Feature / A major update to SEI’s flagship water modelling tool enables policy-makers and researchers to more easily determine watershed boundaries and river pathways.

Feature / SEI researchers recently unveiled the first comprehensive model of Bolivia’s rivers, lakes and streams, as part of the Bolivia National Water Balance.

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Perspective / 21 of California’s groundwater basins and sub-basins are critically overdrafted. We must break entrenched positions and find sustainable solutions.

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Feature / Laura Forni explains how a large-scale scenario exercise could help decision-makers find the best way to allocate limited water resources.

Project / SEI uses its flagship water modelling software, WEAP, to update the California Water Plan.

Project / SEI is working with UC Davis and the California State Water Resources Control Board to implement the Drought Emergency Regulation in the Scott River watershed.

Project / SEI is building the Ventura Water Allocation Model (VWAM) using SEI’s flagship WEAP software for the Ventura River watershed in California.

Project / The Sacramento Water Allocation Model enables policy-makers to weigh difficult trade-offs in water use, by simulating a complex water system in the US.

Project / SEI adapted WEAP to assess the needs of chinook salmon and steelhead trout in the Santa Clara Valley Water District.

Project / SEI worked with the Yolo County Flood Control and Water Conservation District to produce a Stormwater Resources Plan.

Project / SEI is designing water allocation models that explicitly represent every water right and assess the impact of in-stream flow requirements on water users.

Past event / Learn how SEI's innovative water modelling tool allows researchers and policymakers to advance sustainable and equitable water planning.

Past event / This session examines the complexities of transboundary water governance by exploring ideas and case studies at Stockholm World Water Week.

Past event / SEI scientists will host a three-day training on WEAP, SEI's flagship water modelling software, on 18, 20 and 22 September 2023. Register today.