• Publications
  • Influence
The CloudSat mission and the A-train: a new dimension of space-based observations of clouds and precipitation
CloudSat is a satellite experiment designed to measure the vertical structure of clouds from space. The expected launch of CloudSat is planned for 2004, and once launched, CloudSat will orbit inExpand
Radiation Profiles in Extended Water Clouds. II: Parameterization Schemes
Abstract The shortwave absorption, albedo and longwave emissivity of water clouds are parameterized for use in operational and climatic models of the atmosphere. The parameterization also providesExpand
An update on Earth's energy balance in light of the latest global observations
Climate change is governed by changes to the global energy balance. A synthesis of the latest observations suggests that more longwave radiation is received at the Earth's surface than previouslyExpand
Hydrometeor Detection Using Cloudsat—An Earth-Orbiting 94-GHz Cloud Radar
In late April 2006, NASA launched Cloudsat, an earth-observing satellite that uses a near-nadir-pointing millimeter-wavelength radar to probe the vertical structure of clouds and precipitation. TheExpand
A new polarized atmospheric radiative transfer model
A plane-parallel polarized radiative transfer model is described. The model is used to compute the radiance exiting a vertically inhomogeneous atmosphere containing randomly-oriented particles. BothExpand
Cloud Feedbacks in the Climate System: A Critical Review
  • G. Stephens
  • Environmental Science, Geography
  • 15 January 2005
Abstract This paper offers a critical review of the topic of cloud–climate feedbacks and exposes some of the underlying reasons for the inherent lack of understanding of these feedbacks and whyExpand
Radiation Profiles in Extended Water Clouds. I: Theory
Abstract A detailed multiple-scattering model has been employed to investigate the sensitivity of radiation profiles and flux divergences to changes in macrostructure and microstructure of basicExpand
Retrieval of ice cloud microphysical parameters using the CloudSat millimeter‐wave radar and temperature
[1] A new remote sensing retrieval of ice cloud microphysics has been developed for use with millimeter-wave radar from ground-, air-, or space-based sensors. Developed from an earlier retrieval thatExpand
A description of hydrometeor layer occurrence statistics derived from the first year of merged Cloudsat and CALIPSO data
[1] The occurrence statistics of hydrometeor layers covering the Earth's surface is described using the first year of millimeter radar data collected by Cloudsat merged with lidar data collected byExpand
Observed changes in top-of-the-atmosphere radiation and upper-ocean heating consistent within uncertainty
Global climate change results from a small yet persistent imbalance between the amount of sunlight absorbed by the Earth and the thermal radiation emitted back to space. A revised analysis ofExpand