Opportunity Information: Apply for G15AS00042

  • The Geological Survey in the science and technology and other research and development sector is offering a public funding opportunity titled "Cooperative Ecosystem Studies Unit, South Florida/Caribbean CESU" and is now available to receive applicants.
  • Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 15.808 U.S. Geological Survey Research and Data Collection.
  • This funding opportunity was created on Mar 16, 2015 and posted on Mar 16, 2015.
  • Applicants must submit their applications by Mar 30, 2015. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
  • The funding agency has allocated a total of $325,000.00 to eligible and selected applicants.
  • The number of recipients for this funding is limited to 1 candidate(s).
  • Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
  • This financial assistance opportunity is being issued under a Cooperative Ecosystem Studies Unit (CESU) Program. CESUs are partnerships that provide research, technical assistance, and education. Eligible recipients must be a participating partner of the South Florida/Caribbean Cooperative Ecosystem Studies Unit (CESU) Program.
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Opportunity Summary:

The U.S. Geological Survey (USGS) posted a discretionary funding opportunity (Funding Opportunity Number G15AS00042) under the Cooperative Ecosystem Studies Unit (CESU) program, specifically the South Florida/Caribbean CESU network. The award mechanism is a cooperative agreement, meaning the project is expected to be conducted in collaboration with USGS rather than as a completely independent grant. The program area is classified under Science and Technology and other Research and Development, and it aligns with USGS Research and Data Collection (CFDA 15.808). The opportunity anticipated making one award, with an estimated total funding amount of $325,000. There was no cost sharing or matching requirement listed. The announcement was posted on March 16, 2015, and the closing date was March 30, 2015 (with the archive date noted as June 16, 2015).

Eligibility is restricted to organizations that are already participating partners in the South Florida/Caribbean CESU. CESUs are partnership-based networks designed to connect federal agencies with universities and other research or technical organizations to deliver applied research, technical support, and education that serve public needs. In practical terms, that means applicants had to be within that CESU partnership to be considered.

The technical focus of the project is on understanding and predicting how a tidal inlet behaves physically and how it moves sediment. USGS sought a CESU partner to carry out collaborative research combining field observations and numerical modeling. The intent is twofold: first, to measure key physical oceanographic processes (such as currents, tides, waves, and circulation patterns) and sediment transport processes in and around an inlet; and second, to use numerical models to simulate those processes and predict how the inlet evolves over time.

A central research objective is morphodynamics: how the shape and geometry of the inlet, its channels, shoals, and adjacent shorelines change as sediment is eroded, transported, and deposited. The opportunity specifically highlights numerical investigations of sediment dynamics aimed at predicting equilibrium conditions of inlet evolution. In this context, "equilibrium" generally refers to the inlet reaching a relatively stable configuration under a particular combination of forcing conditions, especially tidal prism (the volume of water exchanged through the inlet during a tidal cycle) and wave conditions. By varying or prescribing tidal prism and wave climate in simulations, the project would explore what inlet geometry and sediment pathways are expected to emerge and persist, and under what conditions the inlet might shift or reorganize.

Another key requirement is model validation against real-world measurements. The numerically simulated morphodynamic evolution is expected to be compared with observational data collected at a realistic tidal inlet that exhibits similar dynamics. This comparison is important because inlet models can be sensitive to boundary conditions and parameter choices, and field datasets provide the basis for checking whether the model reproduces observed currents, sediment fluxes, bathymetric change patterns, and larger-scale morphological trends.

The proposed study area is Matanzas Inlet, Florida. USGS describes it as a mixed-regime inlet influenced by both waves and currents, which makes it a useful natural laboratory for studying the combined effects of wave-driven alongshore transport and tidally driven inlet flows. Matanzas Inlet is also notable because it is one of the few inlets on Florida's east coast that has not been stabilized by jetties and is relatively minimally affected by direct human intervention. That natural, less-engineered character increases its value for investigating how inlets evolve under more natural forcing, and it can help improve understanding that may be transferable to other inlets, including ones that are managed or engineered.

Administrative details included an additional information link to Grants.gov and a point of contact for assistance accessing the full announcement: Faith Graves (703-648-7356, fgraves@usgs.gov).

Frequently Asked Questions (FAQs)

What is the funding opportunity number for this announcement?

The Funding Opportunity Number is G15AS00042.

Which federal agency issued this opportunity?

The opportunity was posted by the U.S. Geological Survey (USGS).

What program is this opportunity offered under?

This opportunity was issued under the Cooperative Ecosystem Studies Unit (CESU) program, specifically the South Florida/Caribbean CESU network.

What type of award mechanism is being used?

The award mechanism is a cooperative agreement. This indicates the project is expected to be conducted in collaboration with USGS rather than as a completely independent grant.

How many awards did USGS anticipate making?

USGS anticipated making one award.

What is the estimated total funding amount?

The estimated total funding amount is $325,000.

Is cost sharing or matching required?

No cost sharing or matching requirement was listed in the information provided.

What is the program area classification for this opportunity?

The program area is classified under Science and Technology and other Research and Development.

Which CFDA program does this align with?

It aligns with USGS Research and Data Collection (CFDA 15.808).

Who is eligible to apply?

Eligibility is restricted to organizations that are already participating partners in the South Florida/Caribbean CESU.

What does it mean that eligibility is restricted to CESU partners?

CESUs are partnership-based networks designed to connect federal agencies with universities and other research or technical organizations. In practical terms for this opportunity, applicants had to be within the South Florida/Caribbean CESU partnership to be considered.

When was the opportunity posted?

The announcement was posted on March 16, 2015.

What was the application closing date?

The closing date was March 30, 2015.

What was the archive date noted for the opportunity?

The archive date was noted as June 16, 2015.

What is the technical focus of the project?

The technical focus is understanding and predicting how a tidal inlet behaves physically and how it moves sediment, using a combination of field observations and numerical modeling.

What kinds of field measurements are mentioned as part of the work?

The information provided mentions measuring key physical oceanographic processes and sediment transport processes in and around an inlet, including currents, tides, waves, and circulation patterns.

What role does numerical modeling play in the project?

Numerical models are intended to simulate physical oceanographic and sediment transport processes and to predict how the inlet evolves over time.

What is morphodynamics in the context of this opportunity?

Morphodynamics refers to how the shape and geometry of the inlet (including channels, shoals, and adjacent shorelines) change as sediment is eroded, transported, and deposited.

What does the opportunity mean by investigating "equilibrium" conditions?

In this context, "equilibrium" generally refers to the inlet reaching a relatively stable configuration under a particular combination of forcing conditions, especially tidal prism and wave conditions.

What is tidal prism, as referenced in the project description?

Tidal prism is described as the volume of water exchanged through the inlet during a tidal cycle.

How are tidal prism and wave conditions used in the proposed modeling work?

The project description indicates that simulations would vary or prescribe tidal prism and wave climate to explore what inlet geometry and sediment pathways are expected to emerge and persist, and under what conditions the inlet might shift or reorganize.

Is model validation required?

Yes. A key requirement is model validation against real-world measurements.

What is the model validation expected to compare?

The numerically simulated morphodynamic evolution is expected to be compared with observational data collected at a realistic tidal inlet with similar dynamics, including comparisons to observed currents, sediment fluxes, bathymetric change patterns, and larger-scale morphological trends.

Why is field-based validation emphasized?

The information provided notes that inlet models can be sensitive to boundary conditions and parameter choices, and field datasets provide the basis for checking whether the model reproduces observed behavior and change patterns.

What is the proposed study area for this project?

The proposed study area is Matanzas Inlet, Florida.

How does USGS describe Matanzas Inlet?

USGS describes Matanzas Inlet as a mixed-regime inlet influenced by both waves and currents.

Why is Matanzas Inlet considered a useful site for this research?

It is described as a useful natural laboratory for studying the combined effects of wave-driven alongshore transport and tidally driven inlet flows.

What is notable about Matanzas Inlet compared to other inlets on Florida's east coast?

It is noted as one of the few inlets on Florida's east coast that has not been stabilized by jetties and is relatively minimally affected by direct human intervention.

How does the inlet's relatively natural condition relate to the project goals?

The description indicates that the less-engineered character increases its value for investigating how inlets evolve under more natural forcing, and that the improved understanding may be transferable to other inlets, including managed or engineered ones.

Where was additional information about the announcement made available?

An additional information link to Grants.gov was included in the administrative details.

Who is the point of contact listed for assistance accessing the full announcement?

The point of contact listed is Faith Graves, with phone number (703-648-7356) and email fgraves@usgs.gov.

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