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Tropical and arctic cloud observations from calipso between 2008-2014 and its implications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hu, Yongxiang |
| Copyright Year | 2015 |
| Description | There has been studies (e.g., Schweiger, 2004) suggest significant increase of Arctic clouds during the last three decades, especially in the western Arctic region. Such studies are based on passive remote sensing that are not highly reliable due to the lack of contrasts in temperature and reflectance between clouds and snow/ice surfaces. Changes in the Arctic clouds can be evaluated more accurately using the space-based lidar measurements from CALIPSO during the last nine years since CALIPSO can provide much more accurate detection and classification of both water and ice clouds in the Arctic. Time series of Arctic cloud properties (e.g., cloud fraction, cloud thermodynamic phase, water cloud depolarization ratio and droplet number concentration) from CALIPSO data are analyzed in this study. This study reveals the changes in both cloud fraction and cloud microphysical properties during the last nine years when CALIPSO data are available. We will evaluate the changes in Arctic cloud fraction and cloud microphysical properties, their seasonal and spatial characteristics and the potential impact on the energy budget and the climate of the Arctic. |
| File Size | 961251 |
| Page Count | 20 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20160007462 |
| Archival Resource Key | ark:/13960/t9479d70f |
| Language | English |
| Publisher Date | 2015-05-24 |
| Access Restriction | Open |
| Subject Keyword | Meteorology And Climatology Water Cirrus Clouds Time Series Analysis Visual Observation Galactic Cosmic Rays Cloud Height Indicators Arctic Regions Drops Liquids Depolarization Tropical Regions Thermodynamics Cloud Physics Annual Variations Tropopause Supercooling Clouds Meteorology Optical Radar Polar Regions Calipso Pathfinder Satellite Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Presentation |
