Journal ArticleDOI
Diurnal Variations in Convective Activity and Precipitation During Phases II and III of GATE
Mary M. McGarry,Richard J. Reed +1 more
TLDR
In this article, the phase and normalized amplitude of the diurnal variations in convective activity and precipitation during phases II and III of GATE were determined using harmonic analysis, and the longterm representativeness of the results for the land areas was judged by comparing them with the results obtained from analysis of data presented by Burpee (1976) on the frequencies of occurrence of thunder, moderate to heavy precipitation and light precipitation during the period June-September 1966-69.Abstract:
Harmonic analysis is used to determine the phase and normalized amplitude of the diurnal variations in convective activity and precipitation during phases II and III of GATE. Satellite results are based on the percent coverage of squares, 3° of latitude and longitude in dimensions, by convective clouds, as estimated subjectively from SMS-1 infrared images. Rainfall results are based on hourly precipitation records for 33 land stations and hourly or 3-hourly rainfall amounts from 13 ships in the A/B-scale networks. The rainfall data for the land stations were combined into four geographically distinct groups and the ship data into a single group before making the harmonic analyses. The long-term representativeness of the results for the land areas is judged by comparing them with the results obtained from analysis of data presented by Burpee (1976) on the frequencies of occurrence of thunder, moderate to heavy precipitation and light precipitation during the period June-September 1966–69. The main...read more
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Journal ArticleDOI
The Diurnal Cycle in the Tropics
Gui-Ying Yang,Julia Slingo +1 more
TL;DR: In this article, a global archive of high-resolution (3-hourly, 0.58 latitude-longitude grid) window (11-12 mm) brightness temperature (Tb) data from multiple satellites is developed by the European Union Cloud Archive User Service (CLAUS) project.
Journal ArticleDOI
The Diurnal Cycle of Rainfall and Convective Intensity according to Three Years of TRMM Measurements
TL;DR: The authors presented a comprehensive analysis of the diurnal cycle of the observed precipitation features' rainfall amount, precipitation feature frequency, rainfall intensity, convective-stratiform rainfall portioning, and remotely sensed convective intensity, sampled Tropicswide from space.
Journal ArticleDOI
Precipitation Climatology in an Ensemble of CORDEX-Africa Regional Climate Simulations
Grigory Nikulin,Colin Jones,Filippo Giorgi,Ghassem R. Asrar,Matthias Büchner,Ruth Cerezo-Mota,Ole Bøssing Christensen,Michel Déqué,Jesús Fernández,Andreas Hänsler,Erik van Meijgaard,Patrick Samuelsson,Mouhamadou Bamba Sylla,Laxmi Sushama +13 more
TL;DR: In this article, an ensemble of regional climate simulations is analyzed to evaluate the ability of 10 regional climate models (RCMs) and their ensemble average to simulate precipitation over Africa, using a range of time scales, including seasonal means, and annual and diurnal cycles.
Journal ArticleDOI
Diurnal variation and life‐cycle of deep convective systems over the tropical pacific warm pool
Shuyi S. Chen,Robert A. Houze +1 more
TL;DR: In this paper, the diurnal variations of deep convection in two distinct large-scale flow regimes over the western Pacific warm pool were examined using satellite infrared data and in situ surface measurements from the Tropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response Experiment (TOGA CORE).
Journal ArticleDOI
Global Precipitation and Thunderstorm Frequencies. Part II: Diurnal Variations
TL;DR: In this paper, three-hourly present weather reports from ∼15,000 stations around the globe and from the Comprehensive Ocean-Atmosphere Data Set from 1975 to 1997 were analyzed for diurnal variations in the frequency of occurrence for various types of precipitation (drizzle, nondrizzle, showery, nonshowery, and snow) and thunderstorms.