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Record 1 of 907
How Cities Make Their Own Weather
Author and Affiliation:
Shepherd, J. Marshall(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: Urbanization is one of the extreme cases of land use change. Most of world's population has moved to urban areas. Although currently only 1.2% of the land is considered urban, the spatial coverage and density of cities are expected to rapidly increase in d e near future. It is estimated that by the year 2025, 60% of the world's population will live in cities. Human activity in urban environments also alters weather and climate processes. However, our understanding of urbanization on the total Earth-weather-climate system is incomplete. Recent literature continues to provide evidence that anomalies in precipitation exist over and downwind of major cities. Current and future research efforts are actively seeking to verify these literature findings and understand potential cause-effect relationships. The novelty of this study is that it utilizes rainfall data from multiple satellite data sources (e.g. TRMM precipitation radar, TRMM-geosynchronous-rain gauge merged product, and SSM/I) and ground-based measurements to identify spatial anomalies and temporal trends in precipitation for cities around the world. We will also present results from experiments using a regional atmospheric-land surface modeling system. Early results will be presented and placed within the context of weather prediction, climate assessment, and societal applications.
Publication Date: Jan 01, 2004
Document ID:
20050147492
(Acquired Apr 05, 2005)
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Preprint
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CITIES; WEATHER; REMOTE SENSING; PRECIPITATION (METEOROLOGY); LAND USE; METEOROLOGICAL RADAR; SATELLITE OBSERVATION; WIND DIRECTION; CLIMATE; TRMM SATELLITE; RAIN GAGES; GEOSYNCHRONOUS ORBITS; AIR LAND INTERACTIONS
Miscellaneous Notes: Meeting to be held 12 Nov, 2004, Greenville, NC
Availability Source: Other Sources
Availability Notes: Abstract Only
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