4 NASA RESEARCH ANNOUNCEMENT AWARD THIS CONTRACT IS FOR THE INVESTIGATION OF AEROSOL-CLOUD INTERACTIONS AND THE AEROSOL INDIRECT EFFECT IN MARINE LOW CLOUDS BY COMBINING AEROSOL EXTINCTION DERIVED FROM CALIOP WITH COLLOCATED CLOUD PROPERTIES DERIVED FROM THE MODERATE RESOLUTION IMAGING SPECTRORADIOMETER (MODIS). THE SPECIFIC FOCUS WILL BE ON THE AEROSOL VERTICAL STRUCTURE AND THE ATMOSPHERIC FACTORS THAT MODIFY THE CLOUD-AEROSOL RELATIONSHIP IN DIFFERENT REGIONS. THE PROJECT WILL ALSO EVALUATE NEW METHODS TO COMBINE CALIOP AEROSOL PRODUCTS WITH OTHER A-TRAIN DATASETS. THE OBSERVATIONAL RELATIONSHIPS WILL BE FURTHER UTILIZED TO CALCULATE THE CLOUD ALBEDO SUSCEPTIBILITY TO CHANGES IN THE AEROSOL EXTINCTION COEFFICIENT BY MEANS OF RADIATIVE OBSERVATIONS FROM THE CLOUDSAT AND EARTH RADIANT ENERGY SYSTEM (CERES) AND RADIATIVE TRANSFER SIMULATIONS. NUMERICAL EXPERIMENTS WITH THE HIGH-RESOLUTION WEATHER RESEARCH AND FORECASTING MODEL COUPLED WITH CHEMISTRY MODULE (WRF-CHEM) WILL BE CONDUCTED TO PROVIDE THE PHYSICAL INTERPRETATION OF THE OBSERVED CORRELATIONS AND EVALUATE THE RELATIVE IMPORTANCE OF FREE TROPOSPHERIC AND BOUNDARY LAYER AEROSOLS. PARTICULAR EMPHASIS WILL BE GIVEN TO THE AEROSOL VERTICAL VARIABILITY, AEROSOL HUMIDIFICATION AND ENTRAINMENT RATE. OVERALL, THIS ANALYSIS WILL LEAD TO A MORE ACCURATE QUANTIFICATION OF THE AEROSOL INDIRECT EFFECTS AS WELL AS A BETTER UNDERSTANDING OF THE BIASES ASSOCIATED WITH ACI ESTIMATES BASED ONLY ON PASSIVE SATELLITE SENSORS. Exercise an Option $126.6k 9/20/18 3 NASA RESEARCH ANNOUNCEMENT AWARD THIS CONTRACT IS FOR THE INVESTIGATION OF AEROSOL-CLOUD INTERACTIONS AND THE AEROSOL INDIRECT EFFECT IN MARINE LOW CLOUDS BY COMBINING AEROSOL EXTINCTION DERIVED FROM CALIOP WITH COLLOCATED CLOUD PROPERTIES DERIVED FROM THE MODERATE RESOLUTION IMAGING SPECTRORADIOMETER (MODIS). THE SPECIFIC FOCUS WILL BE ON THE AEROSOL VERTICAL STRUCTURE AND THE ATMOSPHERIC FACTORS THAT MODIFY THE CLOUD-AEROSOL RELATIONSHIP IN DIFFERENT REGIONS. THE PROJECT WILL ALSO EVALUATE NEW METHODS TO COMBINE CALIOP AEROSOL PRODUCTS WITH OTHER A-TRAIN DATASETS. THE OBSERVATIONAL RELATIONSHIPS WILL BE FURTHER UTILIZED TO CALCULATE THE CLOUD ALBEDO SUSCEPTIBILITY TO CHANGES IN THE AEROSOL EXTINCTION COEFFICIENT BY MEANS OF RADIATIVE OBSERVATIONS FROM THE CLOUDSAT AND EARTH RADIANT ENERGY SYSTEM (CERES) AND RADIATIVE TRANSFER SIMULATIONS. NUMERICAL EXPERIMENTS WITH THE HIGH-RESOLUTION WEATHER RESEARCH AND FORECASTING MODEL COUPLED WITH CHEMISTRY MODULE (WRF-CHEM) WILL BE CONDUCTED TO PROVIDE THE PHYSICAL INTERPRETATION OF THE OBSERVED CORRELATIONS AND EVALUATE THE RELATIVE IMPORTANCE OF FREE TROPOSPHERIC AND BOUNDARY LAYER AEROSOLS. PARTICULAR EMPHASIS WILL BE GIVEN TO THE AEROSOL VERTICAL VARIABILITY, AEROSOL HUMIDIFICATION AND ENTRAINMENT RATE. OVERALL, THIS ANALYSIS WILL LEAD TO A MORE ACCURATE QUANTIFICATION OF THE AEROSOL INDIRECT EFFECTS AS WELL AS A BETTER UNDERSTANDING OF THE BIASES ASSOCIATED WITH ACI ESTIMATES BASED ONLY ON PASSIVE SATELLITE SENSORS. Supplemental Agreement for work within scope $0 4/25/18 2 NASA RESEARCH ANNOUNCEMENT AWARD THIS CONTRACT IS FOR THE INVESTIGATION OF AEROSOL-CLOUD INTERACTIONS AND THE AEROSOL INDIRECT EFFECT IN MARINE LOW CLOUDS BY COMBINING AEROSOL EXTINCTION DERIVED FROM CALIOP WITH COLLOCATED CLOUD PROPERTIES DERIVED FROM THE MODERATE RESOLUTION IMAGING SPECTRORADIOMETER (MODIS). THE SPECIFIC FOCUS WILL BE ON THE AEROSOL VERTICAL STRUCTURE AND THE ATMOSPHERIC FACTORS THAT MODIFY THE CLOUD-AEROSOL RELATIONSHIP IN DIFFERENT REGIONS. THE PROJECT WILL ALSO EVALUATE NEW METHODS TO COMBINE CALIOP AEROSOL PRODUCTS WITH OTHER A-TRAIN DATASETS. THE OBSERVATIONAL RELATIONSHIPS WILL BE FURTHER UTILIZED TO CALCULATE THE CLOUD ALBEDO SUSCEPTIBILITY TO CHANGES IN THE AEROSOL EXTINCTION COEFFICIENT BY MEANS OF RADIATIVE OBSERVATIONS FROM THE CLOUDSAT AND EARTH RADIANT ENERGY SYSTEM (CERES) AND RADIATIVE TRANSFER SIMULATIONS. NUMERICAL EXPERIMENTS WITH THE HIGH-RESOLUTION WEATHER RESEARCH AND FORECASTING MODEL COUPLED WITH CHEMISTRY MODULE (WRF-CHEM) WILL BE CONDUCTED TO PROVIDE THE PHYSICAL INTERPRETATION OF THE OBSERVED CORRELATIONS AND EVALUATE THE RELATIVE IMPORTANCE OF FREE TROPOSPHERIC AND BOUNDARY LAYER AEROSOLS. PARTICULAR EMPHASIS WILL BE GIVEN TO THE AEROSOL VERTICAL VARIABILITY, AEROSOL HUMIDIFICATION AND ENTRAINMENT RATE. OVERALL, THIS ANALYSIS WILL LEAD TO A MORE ACCURATE QUANTIFICATION OF THE AEROSOL INDIRECT EFFECTS AS WELL AS A BETTER UNDERSTANDING OF THE BIASES ASSOCIATED WITH ACI ESTIMATES BASED ONLY ON PASSIVE SATELLITE SENSORS. Exercise an Option $120.6k 9/25/17 Not listed NASA RESEARCH ANNOUNCEMENT AWARD THIS CONTRACT IS FOR THE INVESTIGATION OF AEROSOL-CLOUD INTERACTIONS AND THE AEROSOL INDIRECT EFFECT IN MARINE LOW CLOUDS BY COMBINING AEROSOL EXTINCTION DERIVED FROM CALIOP WITH COLLOCATED CLOUD PROPERTIES DERIVED FROM THE MODERATE RESOLUTION IMAGING SPECTRORADIOMETER (MODIS). THE SPECIFIC FOCUS WILL BE ON THE AEROSOL VERTICAL STRUCTURE AND THE ATMOSPHERIC FACTORS THAT MODIFY THE CLOUD-AEROSOL RELATIONSHIP IN DIFFERENT REGIONS. THE PROJECT WILL ALSO EVALUATE NEW METHODS TO COMBINE CALIOP AEROSOL PRODUCTS WITH OTHER A-TRAIN DATASETS. THE OBSERVATIONAL RELATIONSHIPS WILL BE FURTHER UTILIZED TO CALCULATE THE CLOUD ALBEDO SUSCEPTIBILITY TO CHANGES IN THE AEROSOL EXTINCTION COEFFICIENT BY MEANS OF RADIATIVE OBSERVATIONS FROM THE CLOUDSAT AND EARTH RADIANT ENERGY SYSTEM (CERES) AND RADIATIVE TRANSFER SIMULATIONS. NUMERICAL EXPERIMENTS WITH THE HIGH-RESOLUTION WEATHER RESEARCH AND FORECASTING MODEL COUPLED WITH CHEMISTRY MODULE (WRF-CHEM) WILL BE CONDUCTED TO PROVIDE THE PHYSICAL INTERPRETATION OF THE OBSERVED CORRELATIONS AND EVALUATE THE RELATIVE IMPORTANCE OF FREE TROPOSPHERIC AND BOUNDARY LAYER AEROSOLS. PARTICULAR EMPHASIS WILL BE GIVEN TO THE AEROSOL VERTICAL VARIABILITY, AEROSOL HUMIDIFICATION AND ENTRAINMENT RATE. OVERALL, THIS ANALYSIS WILL LEAD TO A MORE ACCURATE QUANTIFICATION OF THE AEROSOL INDIRECT EFFECTS AS WELL AS A BETTER UNDERSTANDING OF THE BIASES ASSOCIATED WITH ACI ESTIMATES BASED ONLY ON PASSIVE SATELLITE SENSORS. Not listed $118.0k 9/30/16