A5024004617- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Spectroscopy and Laser Applications
- Climate change and permafrost
- Calibration and Measurement Techniques
- Atmospheric chemistry and aerosols
- Methane Hydrates and Related Phenomena
- Meteorological Phenomena and Simulations
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Geological Modeling and Analysis
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Geological Studies and Exploration
- Laser Design and Applications
American University
2015-2021
Science Systems and Applications (United States)
2016-2019
Goddard Space Flight Center
2018-2019
We present a design for 4 U (20 cm × 20 10 cm) occultation-viewing laser heterodyne radiometer (LHR) that measures methane (CH4), carbon dioxide (CO2) and water vapor (H2O) in the limb is designed deployment on 6 CubeSat. The LHR collects sunlight has undergone absorption by trace gas mixes it with distributive feedback (DFB) centered at 1640 nm scans across CO2, CH4, H2O features. Upper troposphere/lower stratosphere measurements of these gases provide key inputs to stratospheric...
Abstract. We present observing system simulation experiments (OSSEs) to evaluate the impact of a proposed network ground-based miniaturized laser heterodyne radiometer (mini-LHR) instruments that measure atmospheric column-averaged carbon dioxide (XCO2) with 1 ppm precision. A particular strength this passive measurement approach is its insensitivity clouds and aerosols due direct sun pointing narrow field view (0.2∘). Developed at NASA Goddard Space Flight Center (GSFC), these portable,...
Abstract We present the final design, environmental testing, and launch history of MiniCarb, a 6U CubeSat developed through partnership between NASA Goddard Space Flight Center Lawrence Livermore National Laboratory. MiniCarb’s science payload, at Goddard, was an occultation-viewing, passive laser heterodyne radiometer for observing methane, carbon dioxide, water vapor in Earth’s atmosphere ∼1.6 µm s −1 . satellite, Livermore, implemented their Next Generation Bus plug-and-play architecture...
The Miniaturized Laser Heterodyne Radiometer (Mini-LHR), which measures both methane and carbon dioxide in the atmospheric column, has been under development at NASA Goddard Space Flight Center since 2009. LHR-CUBE (Laser Radiometer-CubeSat) will measure (CH4) 1653.7 nm from within a 6U (1U = 10 cm3) CubeSat spacecraft an occultation (sun) viewing orbit. In ground flight versions of instrument, sunlight passes through portion atmosphere, undergoes absorption by trace gas, is then collected...
Abstract. We present Observing System Simulation Experiments (OSSEs) to evaluate the impact of a new network ground-based miniaturized laser heterodyne radiometer (mini-LHR) instruments that measure atmospheric column-averaged carbon dioxide (XCO2) with high precision (1 ppm). A particular strength this passive measurement approach is its insensitivity clouds and aerosols due direct sun pointing narrow field-of-view (0.2 degrees). Developed at NASA Goddard Space Flight Center (GSFC), these...