AC4 is a competitive research program, which solicits research proposals typically on an annual basis, starting with the FY2013 announcement released during summer of 2012. In addition, occasionally, the program participates in an interagency call for proposals. Current and past solicitations and research priorities are listed below.
View past AC4 funding opportunities (and those of predecessor programs) below.
In FY23, the AC4 Program is soliciting research proposals focused on methane measurements and modeling across spatial and temporal scales, building on NOAA’s decades long expertise in measuring methane and other greenhouse gases, as well as other AC4 specific investments. Research priorities of this solicitation include urban, regional and global methane concentrations and fluxes, especially as relevant for monitoring, reporting and verification of emissions.
Information Sheet | Competition Awards
In FY22, to build on and expand its previous wildfire investments, the AC4 program invites proposals focused on one or more of the following:
In FY21, the AC4 program will focus on a subset of AEROMMA by seeking to support studies of emissions and chemical transformation in the urban atmosphere. Specifically, AC4 plans to support the types of projects that:
In response to this unique opportunity to study the atmospheric composition effects of the ongoing pandemic in FY21, AC4 and COM programs invite proposals focused on, but not limited to, one or more of the following:
In FY20, to continue and expand its investments in the urban atmosphere, the AC4 program invites proposals focused on one or more of the following:
In FY19, the AC4 Program in NOAA's Climate Program Office solicits proposals that aim to explain various trends, patterns and extremes detectable in the existing long-term observational records.
Features that could be explored include, but are not limited to:
In FY18, as part of a continuing interest in the nitrogen cycle, the Atmospheric Chemistry, Carbon Cycle and Climate (AC4) program announcement focuses on laboratory, modeling, and analysis studies (of existing field data) that address one or more of the following priorities:
Information Sheet | FIREX-related awards (#11-20)
The FY17 AC4 announcement builds on the wealth of collected atmospheric measurements of emissions from oil & gas sector, as well as a number of studies focused on emissions from urban regions to support synthesis efforts, including analysis and modeling of emissions and chemistry. Multi PI projects synthesizing several aspects of a particular geographical region or those which involve a synthesis across several geographical regions with common science objectives are solicited.
Information Sheet | FIREX-related awards (#1-10)
In FY16, AC4 program solicits proposals focused on Western US fire research relevant to FIREX. Specifically, AC4 plans to support the types of projects that:
In FY15, AC4 program solicited proposals focused on
In FY14, AC4 program solicited proposals targeting research areas including
Interagency carbon cycle call for proposals (under NASA ROSES)
In the carbon cycle interagency call for proposals under NASA/ROSES, NOAA's participation in (through our AC4 program) focused on "Carbon dynamics within urban-suburban-forested-agricultural landscapes". The full solicitation included other topics within carbon cycle.
The link to the solicitation is the following: http://solicitation.nasaprs.com/ROSES2013
In FY13, AC4 program solicited proposals targeting research areas including
18 projects were awarded, 40% success rate
(Competition cancelled, no awards were made)
ACC Information Sheet | GCC Information Sheet
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