地球惑星科学専攻 地球科学輻合部特別講演会

講演題名：
Global Precipitation Analyses: Basis, Methods and Applications

講演者：
Dr. Phillip A. Arkin
Director, Cooperative Institute for Climate and Satellites (CICS)
Deputy Director, Earth System Science Interdisciplinary Center (ESSIC)
University of Maryland, College Park, Maryland, USA

日時・場所:
2010年5月31日(月) 15：30〜16：30
京都大学理学部1号館5階563号室

講演要旨:
Variability in precipitation exhibits large-scale coherence on a broad
range of spatial and temporal scales.  Adequate understanding of the
causes and consequences of these variations on continental to global
scales must be based on consistent datasets describing the temporal and
spatial behavior of precipitation over the entire globe, including the
oceans. Such analyses are essential to understanding the behavior of the
Earth's climate system and to determining future water resource and
water supply requirements.  Since no single source of information can
provide us with the accuracy and coverage required to provide such
analyses, a number of methods have been developed to combine information
from a variety of sources and to construct time series of analyses of
precipitation for a number of time periods, scales and domains.  I will
describe the various sources of information and methods used to create
global analyses of precipitation and will discuss the strengths and
weaknesses of the resulting products.  Methods used to validate the
integrated analyses will be presented, along with comparisons against
global weather and climate model predictions and simulations.

問い合わせ先:
重 尚一