Climate & Radiation


We investigate atmospheric radiation, both as a driver for climate change and as a tool for the remote sensing of Earth's atmosphere and surface. Our Climate research program seeks to better understand how our planet reached its present state, and how it may respond to future drivers, both natural and anthropogenic.

News and Events

This presentation will cover multiple aspects of my research on Earth's energy balance and planetary heat uptake. We will discuss different approaches to estimate Earth’s energy imbalance (EEI) including the assessment of the contemporary sea level budget using Argo, altimetry and GRACE/GRACE-FO observations.

Aerosols continue to be responsible for the largest uncertainty in determining the anthropogenic radiative forcing of the climate. To both reconcile the large range in satellite-based estimates of the aerosol direct radiative effect (DRE, the direct interaction with solar radiation by all aerosols) and to optimize the design of future observing systems, we build a framework for assessing uncertainty in aerosol DRE and the aerosol direct radiative forcing (DRF, the radiative effect of just anthropogenic aerosols, RF_ari).

Tomography aims to recover a three-dimensional (3D) density map of a medium or an object. In medical imaging, it is extensively used for diagnostics via X-ray computed tomography (CT). Optical diffusion tomography is an alternative to X-ray CT that uses multiple scattered light to deliver coarse density maps for soft tissues.

Maniac Talks

POC: Charles K. Gatebe, Phone: 301-614-6228, Email:

Maniac Talks are about what inspired people to do what they are doing now in their career. It's about their driving forces and motivators and what keeps them going. It's about how they overcome obstacles. The format of the talks is informal and discussion is encouraged. All talks are recorded/taped and archived at GSFC Library. The talks are also available on YouTube:

Associate Director for Institutional Planning and Development, Earth Sciences Division, NASA/GSFC.