Opportunity Information: Apply for 15 558
Apply for 15 558
- The National Science Foundation in the science and technology and other research and development sector is offering a public funding opportunity titled "Hydrologic Sciences (HS)" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 47.050 Geosciences.
- This funding opportunity was created on Mar 24, 2015 and posted on Mar 18, 2015.
- Applicants must submit their applications by Proposals accepted anytime. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- The funding agency has allocated a total of $10,000,000.00 to eligible and selected applicants.
- Each selected applicant is eligible to receive up to $1,000,000.00 in funding.
- The number of recipients for this funding is limited to 35 candidate(s).
- Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
- Who May Submit Proposals Proposals may only be submitted by the following Non profit, non academic organizations Independent museums, observatories, research labs, professional societies and similar organizations in the U.S. associated with educational or research activities. Universities and Colleges Universities and two and four year colleges (including community colleges) accredited in, and having a campus located in, the US acting on behalf of their faculty members. Such organizations also are referred to as academic in
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Opportunity Summary:
The Hydrologic Sciences (HS) grant opportunity (NSF Funding Opportunity Number 15-558) is a National Science Foundation research program that supports fundamental and applied research on how water moves through the environment and how that movement drives the transport of mass and energy across the Earth system. In practical terms, the program is centered on the processes that make up the water cycle and the connected pathways water takes from the atmosphere to the land surface and into the subsurface, and back again. The core idea is to improve understanding of water fluxes (how much water moves, where, and when) and what water carries with it (sediment, dissolved chemicals, nutrients, contaminants, colloids, and biologically relevant materials), including how these flows interact with and reshape landscapes, ecosystems, and human-influenced environments.
Research topics supported by HS span a wide range of hydrologic processes and settings. The program explicitly includes studies of rainfall and precipitation dynamics as they translate into runoff, infiltration into soils, and streamflow generation, along with evaporation and transpiration (the return of water to the atmosphere through direct evaporation and plant-mediated water loss). It also includes subsurface flow in soils and aquifers, meaning work on groundwater recharge, storage, and movement through porous media, and the many transport processes that occur alongside water movement. A strong emphasis is placed on understanding suspended, dissolved, and colloidal transport, which can include sediment and fine particles, dissolved ions and organic matter, and the small-scale materials that strongly influence water quality, geochemistry, and ecological health.
A defining feature of the program is its focus on connections across boundaries within the terrestrial system. That includes linkages between surface water and groundwater, hillslopes and channels, soil and bedrock, land and aquatic ecosystems, and the broader coupling between hydrology, biogeochemistry, and ecology. The program is interested not only in individual processes, but also in how fluxes and transported components co-organize across space and time, meaning how patterns emerge from interacting processes and feedbacks over events, seasons, years, and longer timescales. HS also welcomes work that improves understanding of the mechanisms that can alter water cycle interactions in fundamental ways, including thresholds, nonlinear behavior, and regime shifts that change how hydrologic systems function.
The solicitation highlights interest in how the water cycle is modified by land use and climate, which makes proposals about hydrologic response to urbanization, agriculture, deforestation, wildfire, water management, and climate variability or change particularly relevant when they are framed around process understanding. Studies can integrate physical hydrology with chemical and biological processes so long as those processes are directly coupled to water transport. In other words, projects that connect flow paths and residence times to reactions, nutrient cycling, contaminant fate, microbial processes, or ecosystem dynamics can fit well, provided the hydrologic transport component is central rather than incidental.
HS proposals often draw on interdisciplinary expertise, and NSF notes that submissions commonly involve basic sciences, engineering, and mathematics. This signals that modeling, data analysis, theory development, field and laboratory measurements, and computational or statistical methods are all within scope, especially when they advance mechanistic understanding. Because of the overlap with other NSF programs, proposals may be jointly reviewed with related programs when the topic crosses disciplinary boundaries. The program will also consider synthesis projects, which typically means efforts that integrate existing datasets, reconcile competing models, perform meta-analyses, or develop unifying frameworks that move the field forward without necessarily collecting entirely new observations.
From a funding and administrative standpoint, this is a discretionary grant program in the Science and Technology and other Research and Development category, listed under CFDA 47.050 (Geosciences). NSF anticipates about 35 awards, with an estimated total funding level of $10,000,000. Individual award sizes range from a floor of $30,000 to a ceiling of $1,000,000, and there is no cost sharing or matching requirement. Proposals are accepted at any time, indicating an open submission window rather than a single annual deadline (applicants still typically need to follow NSF program guidance and any internal institutional deadlines for submission).
Eligibility is geared toward U.S.-based research and education organizations. Eligible applicants include U.S. universities and accredited two- and four-year colleges (including community colleges) submitting on behalf of their faculty, as well as non-profit, non-academic organizations such as independent museums, observatories, research laboratories, professional societies, and similar U.S. organizations associated with educational or research activities. The opportunity is administered by the National Science Foundation, and the full program details are associated with NSF Publication 15-558. For access or technical issues related to the announcement through Grants.gov, NSF directs applicants to Grants.gov support at grantsgovsupport@nsf.gov.
Hydrologic Sciences (HS) NSF 15-558 Grant Opportunity: FAQs
1) What is the Hydrologic Sciences (HS) grant opportunity?
The Hydrologic Sciences (HS) grant opportunity (NSF Funding Opportunity Number 15-558) is a National Science Foundation research program that supports fundamental and applied research on how water moves through the environment and how that movement drives the transport of mass and energy across the Earth system.
2) What is the main scientific focus of the HS program?
The program is centered on the processes that make up the water cycle and the connected pathways water takes from the atmosphere to the land surface and into the subsurface, and back again. A core emphasis is improving understanding of water fluxes (how much water moves, where, and when) and what water carries with it.
3) What types of things does the program consider as "what water carries"?
The HS program explicitly includes transport of sediment, dissolved chemicals, nutrients, contaminants, colloids, and biologically relevant materials, including how these transported components interact with and reshape landscapes, ecosystems, and human-influenced environments.
4) What hydrologic processes are within scope?
Supported topics span a wide range of hydrologic processes and settings, including rainfall and precipitation dynamics, runoff, infiltration into soils, streamflow generation, evaporation, transpiration, and subsurface flow in soils and aquifers (including groundwater recharge, storage, and movement through porous media).
5) Does the program support groundwater and subsurface research?
Yes. The program includes subsurface flow in soils and aquifers, including groundwater recharge, storage, and movement through porous media, along with transport processes that occur alongside water movement.
6) How important is water quality or geochemical transport to HS?
HS places a strong emphasis on suspended, dissolved, and colloidal transport. This can include sediment and fine particles, dissolved ions and organic matter, and small-scale materials that strongly influence water quality, geochemistry, and ecological health.
7) What does HS mean by "connections across boundaries" in the terrestrial system?
A defining feature of HS is its interest in linkages across boundaries such as surface water and groundwater; hillslopes and channels; soil and bedrock; land and aquatic ecosystems; and the coupling between hydrology, biogeochemistry, and ecology.
8) Are projects focused on interactions and feedbacks over time a good fit?
Yes. HS is interested not only in individual processes, but also in how fluxes and transported components co-organize across space and time, including patterns and feedbacks over events, seasons, years, and longer timescales.
9) Does the program support research on thresholds, nonlinear behavior, or regime shifts?
Yes. HS welcomes work that improves understanding of mechanisms that can alter water cycle interactions in fundamental ways, including thresholds, nonlinear behavior, and regime shifts that change how hydrologic systems function.
10) How does HS view research related to land use and climate?
The solicitation highlights interest in how the water cycle is modified by land use and climate. Proposals about hydrologic response to urbanization, agriculture, deforestation, wildfire, water management, and climate variability or change are particularly relevant when they are framed around process understanding.
11) Can proposals integrate hydrology with chemical or biological processes?
Yes, as long as the chemical and biological processes are directly coupled to water transport. Projects that connect flow paths and residence times to reactions, nutrient cycling, contaminant fate, microbial processes, or ecosystem dynamics can fit well, provided the hydrologic transport component is central rather than incidental.
12) What research approaches and methods are considered in scope?
The program commonly involves interdisciplinary expertise across basic sciences, engineering, and mathematics. Modeling, data analysis, theory development, field and laboratory measurements, and computational or statistical methods are all within scope when they advance mechanistic understanding.
13) Will interdisciplinary proposals be reviewed with other NSF programs?
Possibly. Because of overlap with other NSF programs, proposals may be jointly reviewed with related programs when the topic crosses disciplinary boundaries.
14) Does HS consider synthesis projects?
Yes. The program will consider synthesis projects, typically efforts that integrate existing datasets, reconcile competing models, perform meta-analyses, or develop unifying frameworks that move the field forward without necessarily collecting entirely new observations.
15) What type of grant program is this?
This is a discretionary grant program in the Science and Technology and other Research and Development category.
16) What is the CFDA listing for this opportunity?
The opportunity is listed under CFDA 47.050 (Geosciences).
17) How many awards does NSF expect to make and what is the estimated total funding?
NSF anticipates about 35 awards, with an estimated total funding level of $10,000,000.
18) What is the typical award size range?
Individual award sizes range from a floor of $30,000 to a ceiling of $1,000,000.
19) Is cost sharing or matching required?
No. There is no cost sharing or matching requirement.
20) When are proposals due?
Proposals are accepted at any time, indicating an open submission window rather than a single annual deadline. Applicants still typically need to follow NSF program guidance and any internal institutional deadlines for submission.
21) Who is eligible to apply?
Eligibility is geared toward U.S.-based research and education organizations. Eligible applicants include U.S. universities and accredited two- and four-year colleges (including community colleges) submitting on behalf of their faculty.
22) Are non-profit, non-academic organizations eligible?
Yes. Eligible applicants also include non-profit, non-academic organizations such as independent museums, observatories, research laboratories, professional societies, and similar U.S. organizations associated with educational or research activities.
23) Which agency administers this opportunity?
The opportunity is administered by the National Science Foundation (NSF).
24) Where can applicants find the full program details?
The full program details are associated with NSF Publication 15-558.
25) Who should applicants contact for Grants.gov access or technical issues?
For access or technical issues related to the announcement through Grants.gov, NSF directs applicants to contact Grants.gov support at grantsgovsupport@nsf.gov.
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