Closed · 15-558 · CFDA 47.050 · Discretionary
Hydrologic Sciences (HS)
Federal grant opportunity posted by U.S. National Science Foundation, cataloged on Grants.gov.
- $30K-$1M
- Award range
- Closed
- Status
- -
- Close date
- 35
- Expected awards
The verdict
Hydrologic Sciences (HS) is a closed discretionary listing from U.S. National Science Foundation that offered $30,000 -- $1,000,000 across 35 expected awards. Future funding cycles may be published under the same CFDA number.
- $30K-$1M
- award range
- Closed
- application status
- 35
- expected awards
- 47.050
- CFDA program
Opportunity snapshot. This Grants.gov announcement - Hydrologic Sciences (HS) - is cataloged under number 15-558 and tied to CFDA assistance listing 47.050, posted by U.S. National Science Foundation. Grants.gov currently shows the opportunity as closed, first posted on June 6, 2025. The funding category is Discretionary, delivered as a grant.
Award economics. The award range on file is $30,000 -- $1,000,000. The agency has projected $10.0 million in total estimated funding for this announcement. It expects to issue 35 awards. If the agency funds the expected 35 awards from the $10.0 million estimated pool, the average award works out to roughly $286,000. Cost sharing is not required, so applicants do not need to commit matching funds to be competitive on this opportunity. Federal award ranges are often upper bounds; actual allocations reflect program appropriations, the strength of the applicant pool, and the evaluation committee's scoring.
Deadline and action path. This opportunity is closed. Monitoring the parent program page is the most reliable way to catch re-announcements in the next funding cycle. Every Grants.gov submission requires an active SAM.gov registration and a Unique Entity ID. Review the Eligibility section below carefully, federal eligibility categories (nonprofit, state or local government, tribal, individual, educational institution, small business) have distinct registration and reporting requirements. Pre-application outreach to the listed agency contact is permitted and often welcomed, it helps clarify scope and scoring priorities. Before acting on the deadline or award figures above, verify them directly on the official Grants.gov listing, amendments can change dates and amounts after this page was last refreshed.
Award Range
$30,000 -- $1,000,000
Close Date
Not specified
Proposals accepted anytime
Posted
June 6, 2025
Est. Total Funding
$10,000,000
Expected Awards
35
Instrument
Grant
Description
The Hydrologic Sciences Program focuses on the fluxes of water in the environment that constitute the water cycle as well as the mass and energy transport function of the water cycle. The Program supports the study of processes from rainfall to runoff to infiltration and streamflow; evaporation and transpiration; the flow of water in soils and aquifers; and the transport of suspended, dissolved, and colloidal components. The Hydrologic Sciences Program retains a strong focus on linking fluxes of water and the components carried by water across boundaries between various interacting facets of the terrestrial system and the mechanisms by which these fluxes co-organize over a variety of timescales and/or alter fundamentals of water cycle interactions within the terrestrial system. The Program is also interested in how water interacts with the landscape and the ecosystem as well as how the water cycle and its coupled processes are altered by land use and climate. Studies may address physical, chemical, and biological processes that are coupled directly to water transport. Projects submitted to Hydrologic Sciences commonly involve expertise from basic sciences, engineering and mathematics; and proposals may require joint review with related programs. The Hydrologic Sciences Program will also consider synthesis projects.
Eligibility
Grants.gov lists this opportunity under eligibility category code 25. These codes correspond to applicant types (state/local government, tribal organization, nonprofit, educational institution, individual, small business, etc.) defined in Grants.gov's own eligibility reference. See the current Grants.gov eligibility categories or check the official listing below for this opportunity's exact eligibility statement.
Official Listing on Grants.gov
View full details, application forms, and submission instructions.
Parent Grant Program
Geosciences
National Science Foundation
Agency Contact
NSF grants.gov support grantsgovsupport@nsf.gov
Key Dates
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| Sources | the SAM.gov Assistance Listings and Grants.gov |