Hydrology : Expert Reports

The division produces 60-70 reports per year. These reports are unique, authoritative expert evaluations. Each report is produced by a committee of experts selected by the Academy to address a particular statement of task and is subject to a rigorous, independent peer review. The experts who volunteer their time participating on study committees are vetted to make sure that the committee has the range of expertise needed to address the task, that they have a balance of perspectives, and to identify and eliminate members with conflicts of interest. All reports undergo a rigorous, independent peer review to assure that the statement of task has been addressed, that conclusions are adequately supported, and that all important issues raised by the reviewers are addressed. Thus, while the reports represent views of the committee, they also are endorsed by the Academy.

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Showing results 1 - 5 of 26

A Community-Based Flood Insurance Option (2015)

Part of the conversation regarding National Flood Insurance Program reform is the prospect of a community-based flood insurance option--a single insurance policy for an entire community--which may be more effective and less expensive than administering separate policies for each property within a given community. This report identifies key issues and questions as "food for thought" for FEMA and Congress as they weigh both the possible benefit... More >>

Report in Brief

Tying Flood Insurance to Flood Risk for Low-Lying Structures in the Floodplains (2015)

One-fifth of the National Flood Insurance Program's 5.5 million policies cover structures that existed before floodplain maps became available. These older structures receive subsidized rates that are lower than warranted by their risk of flooding. However, most are low lying (negatively elevated)--that is, the elevation of the lowest floor is lower than the NFIP benchmark for construction standards and floodplain management ordinances. Low-lyin... More >>

Himalayan Glaciers: Climate Change, Water Resources, and Water Security (2012)

Scientific evidence shows that most glaciers in South Asia's Hindu Kush Himalayan region are retreating, but the consequences for the region's water supply are unclear, this report finds. The Hindu Kush Himalayan region is the location of several of Asia’s great river systems, which provide water for drinking, irrigation, and other uses for about 1.5 billion people. Recent studies show that at lower elevations, glacial retreat is unlikely t... More >>

Report in Brief

Challenges and Opportunities in the Hydrologic Sciences (2012)

New research opportunities to advance hydrologic sciences promise a better understanding of the role of water in the Earth system that could help improve human welfare and the health of the environment. Reaching this understanding will require both exploratory research to better understand how the natural environment functions, and problem-driven research, to meet needs such as flood protection, supply of drinking water, irrigation, and wate... More >>

Report in Brief

Global Change and Extreme Hydrology: Testing Conventional Wisdom (2011)

As climate change warms the atmosphere, Earth's hydrology is shifting—with the potential to make floods and droughts more extreme. There is now a pressing need for decision-makers to better understand the ongoing changes in hydrologic extremes in order to make preparations for changing conditions. This report assesses changes in the frequency and severity of floods and droughts, abilities of communities to understand and forecast these changes... More >>

Report in Brief