Alternating Wet and Dry Conditions over South America during Summer

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Energetics of the summer circulation over South America

We have investigated the energetics of the summer circulation over tropical and extratropical South America. The kinetic energy equations of divergent (Kχ ) and rotational (Kψ ) motion are utilized. All the terms of these equations are calculated on each day for five summers (NovemberFebruary 1985–1990), using global wind analysis from the National Meteorological Center (NMC), now National Cent...

متن کامل

Extreme Summer Convection in South America

Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) and National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalysis data are used to indicate mechanisms responsible for extreme summer convection over South America. The threedimensional reflectivity field is analyzed to define three types of extreme echo, deep convective cores, wi...

متن کامل

Warm and Dry Spells (WDS) in Austral Winter over Central South America

The horizontal and vertical structure of unusually warm and dry spells (WDS) over the central parts of South America during the winter and post-winter months (JJAS) are studied. During WDS the mean temperature and humidity anomalies over central Brazil are about +4.1C and −13.2%, respectively. The mean duration of WDS is 11 days and their mean frequency is less than one per year during the mont...

متن کامل

Trend Analysis and Temporal and Spatial Distribution of Wet Bulb Globe Temperature as a Heat Stress Index in Iran during the Summer Season over a 30-Year Period

Introduction: Global warming is one of the most important environmental problems that have raised researchers’ attention. The present study aimed to analyze heat stress trends using the Wet Bulb Globe Temperature (WBGT) index in the country of Iran during the summer over a 30-year period. Materials and Methods: Daily summertime statistical data regarding mean temperature and mean relative humi...

متن کامل

Empirical Prediction and Predictability of Dry and Wet Spells of the Indian Summer Monsoon

Prediction of the active (rainy) and break (dry) phases of the Indian summer monsoon intraseasonal oscillations (ISO’s) two to threeweeks in advance is of great importance for food production and water management of the country, but is currently unavailable. Potential predictability inherent in the quasi-periodic nature of the monsoon ISO’s is estimated from daily rainfall and circulation data ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Weather Review

سال: 1997

ISSN: 0027-0644,1520-0493

DOI: 10.1175/1520-0493(1997)125<0279:awadco>2.0.co;2