Air

Air

Passive aerosol sensors composing the present generation of space-based instrumentation generally permit measurements spanning the majority of the shortwave spectrum, or observations at multiple viewing angles, but rarely both.

Exploring the capabilities of synergistic passive and active remote sensing with a new aerosol retrieval testbed

Constraining how much the Earth’s climate will warm in response to greenhouse gas emissions is one of the primary goals of climate science. Our understanding of clouds and their interactions with their environment represent a central uncertainty in constraining climate sensitivity.

Science Highlights

New Sensor for Stratospheric Aerosol Measurements - MASTAR

Searching for signals of aerosol-cloud interactions with large-scale datasets

On-Orbit Calibration of Terra MODIS Reflective Solar Bands (RSB) with Polarization Corrections

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Field Campaigns

The NASA African Monsoon Multidisciplinary Analyses (NAMMA) campaign is a field research investigation sponsored by the Science Mission Directorate of the National Aeronautics and Space Administration (NASA).

The East Pacific Origins and Characteristics of Hurricanes field campaign was recently selected. Flights are currently being scheduled for August 2017.

The NASA Micro-Pulse Lidar Network (MPLNET) is a federated network of Micro-Pulse Lidar (MPL) systems designed to measure aerosol and cloud vertical structure, and boundary layer heights. The data are collected continuously, day and night, over long time periods from sites around the world. 

Space Missions

Using advanced radar imaging that will provide an unprecedented, detailed view of Earth, the NASA-ISRO Synthetic Aperture Radar, or NISAR, satellite is designed to observe and take measurements of some of the planet's most complex processes, including ecosystem disturbances, ice-sheet collapse, and natural hazards such as earthquakes, tsunamis, volcanoes and landslides.

aura

Aura (Latin for breeze) was launched July 15, 2004. Aura is part of the Earth Science Projects Division, a program dedicated to monitoring the complex interactions that affect the globe using NASA satellites and data systems. Aura's four instruments study the atmosphere's chemistry and dynamics. The satellite's measurements will enable scientists to investigate questions about ozone trends, air quality changes, and their linkage to climate change.

cr-ave

The Costa Rica Aura Validation Experiment (CR-AVE) is a mission designed to explore the tropical upper troposphere and lower stratosphere (UTLS) and to provide information for comparison to satellite observations.

Research Areas

Climate and weather fluctuations leading to extreme temperatures, storm surges, flooding, and droughts produce conditions that precipitate mosquito-borne disease epidemics directly affecting global public health. Abnormally high temperatures affect populations of mosquito disease vectors by influencing: mosquito survival; susceptibility of mosquitoes to viruses; mosquito population growth rate, distribution, and seasonality; replication and extrinsic incubation period of a virus in the mosquito; and virus transmission patterns and seasonality.

Aerosol dynamics are a global phenomena that affect all aspects of remote sensing from the UV through the near infrared spectrum. Thus it is part of the signal for any remote sensing of vegetation, ocean and atmosphere and is critical for quantifying Earth radiative forcing. Due to the high variability of aerosols over space and time, the contribution to the signal can range from insignificant to dominant. The IPCC has reported that aerosols remain the most uncertain component to quantify the anthropogenic forcing of the earth. 

Disturbance processes such as fire, logging, and insect damage are an integral aspect of how ecosystems change through time. In addition, there is evidence for increased disturbance frequency and altered regrowth patterns due to recent climate change. These changes to disturbance regimes have significant implications for land-climate feedbacks and ecosystem services.

Outreach

IRC-IAMAS

The role of the International Radiation Commission is to promote research into atmospheric radiation as well as application of that research to practical problems. Dr. Lazaros Oreopooulos and Alexander Marshak are members of the International Radiation Commission.

Earth Observatory

Explore the causes and effects of climatic and environmental change through the use of real satellite data.

Instruments

Studies of the Earth’s atmosphere require a comprehensive set ofobservations that rely on instruments flown on spacecraft, aircraft, andballoons as well as those deployed on the surface.

Organizations:

he Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) was developed in France by the Centre National d'Etudes Spatiales (CNES) with the cooperation of Groupe de Recherche en Géodésie Spatiale (GRGS) and the Institut Géographique National (IGN).

Organizations:

G-LiHT enables data fusion studies by providing coincident data in time and space, and provides fine-scale (<1 m) observations over large areas that are needed in many ecosystem studies.

Organizations:

Models

Welcome to the Mesoscale Dynamics & Modeling Group. Our mission is to conduct research to understand the physics and dynamics of atmospheric processes through the use of computer-based simulations and various observations, including satellite remote sensing, aircraft and surface-based in-situ observations.

The Intercomparison of 3D Radiation Codes (I3RC) is an ongoing project initiated in the late 1990s.