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Climate effects of global land cover change
There are two competing effects of global land cover change on climate: an albedo effect which leads to heating when changing from grass/croplands to forest, and an evapotranspiration effect whichExpand
Titan: High-Resolution Speckle Images from the Keck Telescope
Abstract Saturn's large moon Titan is unique among planetary satellites in that it possesses a thick atmosphere and a haze layer that is opaque to visible light. This haze is believed to be composedExpand
Generation of lightning in Jupiter's water cloud
This model predicts that a condensed-water abundance in the range of at least 1-2 g m–3 is required for lightning to occur in jovian thunderstorms—a prediction that may be tested when the Galileo probe arrives at Jupiter on 7 December 1995. Expand
The dynamic neptunian ring arcs: evidence for a gradual disappearance of Liberté and resonant jump of courage
Abstract We present Adaptive Optics observations of Neptune's ring system at 1.6 and 2.2 μm, taken with the 10-m W.M. Keck II telescope in July 2002 and October 2003. We recovered the full Adams andExpand
Near-IR imaging of Asteroid 4 Vesta
Abstract The Keck Observatory's adaptive optics (AO) system has been used to observe Asteroid 4 Vesta during its 2003 closest approach to Earth. Broadband K ′ - and L ′ -band images, centered at 2.1Expand
Speckle imaging of volcanic hotspots on Io with the Keck telescope
Abstract Using speckle imaging techniques on the 10-m W.M. Keck I telescope, we observed near-infrared emission at 2.2 μm from volcanic hotspots on Io in July–August 1998. Using several hundreds ofExpand
Speckle Imaging of Titan at 2 microns: Surface Albedo,Haze Optical Depth, and Tropospheric Clouds 1996-1998
We present results from 14 nights of observations of Titan in 1996-1998 using near-infrared (centered at 2.1 microns) speckle imaging at the 10-meter W.M. Keck Telescope. The observations have aExpand
The altitude of Neptune cloud features from high-spatial-resolution near-infrared spectra
We report on observations of Neptune from the 10-meter W.M. Keck II Telescope on June 17–18 (UT) 2000 and August 2–3 (UT) 2002 using the adaptive optics (AO) system to obtain a spatial resolution ofExpand
Titan's 2 μm surface albedo and haze optical depth in 1996–2004
[1] We observed Titan in 1996–2004 with high-resolution 2 μm speckle and adaptive optics imaging at the W. M. Keck Observatory. By observing in a 2 μm broadband filter we obtain images that haveExpand
Lightning on Neptune
Abstract Electrostatic discharges in planetary atmospheres appear to be common throughout the Solar System, occurring on Earth, Jupiter, Saturn, Uranus, and possibly Venus and Neptune. Lightning isExpand