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The Geospace Cluster (GC) in the Division of Atmospheric and Geospace Sciences (AGS) supports fundamental and solutions-oriented research, technology development and education related to the Earth's near-space environment (including the mesosphere, thermosphere, ionosphere, exosphere, magnetosphere and radiation belts) and the inner heliosphere and solar atmosphere. The GC advances knowledge of the Sun--Earth system, including how various parts of the system are coupled through dynamical, electrodynamical and chemical processes. The GC supports research on the societal impacts of these processes including space weather and upper atmosphere climate change, with the aim of increasing resilience to such natural hazards. The GC supports research that uses ground-based or space-based observational facilities and instruments as well as data centers and a broad range of theoretical, modeling, observational, data analyses and laboratory activities. General research topics that are supported by the GC include, but are not limited to: Aeronomy, including studies of wave dynamics, ionization, recombination, chemical reaction, photo emission and transport of energy and momentum within and between the mesosphere, thermosphere and ionosphere of the Earth; how this global system is coupled to the stratosphere below and magnetosphere above; and the plasma physics of phenomena manifested in the coupled ionosphere-magnetosphere system. Magnetospheric physics, including studies of the magnetosphere, or the cavity carved out of the solar wind by the Earth's magnetic field, its energization by....

The Atmosphere Cluster (AC)in the Division of Atmospheric and Geospace Sciences (AGS)supportsfundamental studies of atmospheric processes from the Earth’s surface to thestratosphere, and from timescales of nanoseconds to millennia. Core areas of research include the chemical, physical, and dynamical processes in the atmosphere thatimpactclouds, weather, climate, air quality, and the water cycle.Research methods include modeling, collecting observations, conducting experiments in the laboratory and field, and advancing analytical measurement techniques. General research topics that are supported by the AC include, andare not limited to: Chemical processes and mechanisms that explain how atmospheric gases and aerosols form, react,transformand interact with the surrounding environment. Processesand dynamics that governclimateand hydroclimate,includingtheir mean state, variability, response to external forcingandtheir role inthe establishment ofaglobal energy and water balance; coupled atmosphere-ocean interactions, land-atmosphere interactions and interactionsamongclouds, atmosphericcirculationand climate. Observational and modeling studies of past climate and its drivers and studies that developand synthesizepaleoclimate proxies and records. Physics and dynamics of atmospheric motions on all scales,from the planetary to the microscale, including the general circulation of the troposphere and stratosphere, planetary waves, synoptic and mesoscale systems, convection, gravity waves,turbulenceand planetary boundary layer dynamics. Physical meteorology including aerosol, cloud, an...

AGS Infrastructure Cluster  The Atmospheric and Geospace Sciences (AGS) Infrastructure Cluster (IC) is responsible for the oversight of facilities that enable research in the atmospheric and geospace sciences. The IC primarily oversees the NSF National Center for Atmospheric Research (NCAR), but it also supports community-based instrumentation and facilities, and data storage and provisioning. NSF

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The Chemical Evolution of the Solid Earth and Volcanology (CESEV) program aims to advance fundamental knowledge about the origin and evolution of our home planet including its core, mantle, and continental crust. The program encourages a wide range of laboratory, field, experimental, theoretical, and/or computational studies that explore the continuous high-temperature igneous and metamorphic geochemical and petrologic processes that shape the Earth. Volcanology and magmatic processes, ore deposits and economic geology, and geochronology are all in the purview of this program. Research in these areas can help improve our understanding of volcanic and other natural hazards, and the distribution of mineral and other natural resources.

The Water, Landscape, and Critical Zone Processes program supports research on the Earth’s near-surface environment and how that environment responds to change. The Program focuses on the complex interplay amongst and between hydrologic, geomorphic, and geochemical processes and how they regulate the structure and function of the Earth’s near surface. These processes drive weathering and soil development, control water availability and quality, and help regulate the Earth’s climate system, all of which are important for natural resource sustainability and mitigation of natural hazards. It is expected that the research funded in this program will advance fundamental knowledge in Earth surface processes, leading to transformational discoveries in Earth Sciences.

The Life and Environments Through Time (LET) program supports research that advances knowledge about the patterns and processes relating to the origin and evolution of Earth’s climate, environments, life, and sedimentary record. This research takes place at the molecular, local, regional, and global scales from the Archean Eon through the Holocene epoch. LET-supported research can be useful for predicting and planning for future global change, and for the maintenance and security of ecosystem services and human societies.

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The Science of Science:Discovery, Communication and Impact (SoS:DCI) program is designed to advance theory and knowledge about increasing the public value of scientific activity. Science of Science draws from multiple disciplinary and field perspectives to advance theory and research about scientific discovery, communication and impact. SoS:DCI welcomes proposals applying rigorous empirical research methods to advance theory and knowledge on: The social and structural mechanisms of scientific discovery. Theories, frameworks, models and data that improve our understanding of scientific communication and outcomes. The societal benefits of scientific activity and how science advances evidence-based policy making and the creation of public value. The SoS:DCI program, which expands upon the formerScience of Science and Innovation Policy (SciSIP)program, funds research that builds theoretical and empirical understanding of the social science of science. SoS:DCI welcomes proposals to conduct research at the individual, organizational and institutional levels or from micro, meso and macro scales and complex system levels. SoS:DCI encourages multiple disciplinary perspectives, interdisciplinary research and diverse methodological approaches in the pursuit of new knowledge to advance the science of science and evidence-based policy making. With these goals in mind, proposals should: Draw from and advance theory, knowledge and frameworks on the science of science. Develop models, data, indicators and associated analytical tools that constitute and enable transformative advances rather...

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