Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Jeffrey R. McCollum"'
Autor:
Edward Beighley, Jeffrey R. McCollum
Publikováno v:
Journal of Hydrologic Engineering. 24
This study investigates challenges of and solutions for estimating regional flood discharges from a limited number of stream gauge records with varying lengths. Routine application of stand...
Publikováno v:
Atmospheric Research. :37-48
Using precipitation data from satellite or global reanalysis products to force hydrologic models exhibits complex rainfall error and resolution effects in the simulation of streamflows. This study assesses the error propagation of two global (or near
Publikováno v:
Journal of Hydrology. 522:35-48
Summary This study compares the scale-dependent variation in hourly Mean Areal Precipitation (MAP) derived from a satellite (S) and a radar-gauge (R) Quantitative Precipitation Estimate (QPE), and seeks to explain the S–R differences on the basis o
Publikováno v:
Hydrology and Earth System Sciences, Vol 18, Iss 12, Pp 5077-5091 (2014)
Deriving flood hazard maps for ungauged basins typically requires simulating a long record of annual maximum discharges. To improve this approach, precipitation from global reanalysis systems must be downscaled to a spatial and temporal resolution ap
Autor:
Ralph Ferraro, Jeffrey R. McCollum
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 22:497-512
The microwave coastal rain identification procedure that has been used by NASA for over 10 yr, and also more recently by NOAA, for different instruments beginning with the Special Sensor Microwave Imager (SSM/I), is updated for use with Tropical Rain
Autor:
O. Ndiaye, G. Kpabeba, Douglas Klotter, M. M. Tanu, Eric Nelkin, J. N. Noukpozounkou, A. Thiam, Jeffrey R. McCollum, Y. Berte, A. K. Traore, B. Some, B. M. Diallo, I. Gaye, A. A. Toure, Sharon E. Nicholson
Publikováno v:
Journal of Applied Meteorology. 42:1337-1354
Gauge data over North Africa are used to provide an assessment of satellite and blended rainfall products for 1988‐94 and for 1998. A comparison is also made with the Global Precipitation Climatology Center (GPCC) gauge dataset. For the 1988‐94 p
Autor:
A. Thiam, B. M. Diallo, I. Gaye, G. Kpabeba, Eric Nelkin, Sharon E. Nicholson, Y. Berte, A. K. Traore, A. A. Toure, Jeffrey R. McCollum, O. Ndiaye, Douglas Klotter, B. Some, J. N. Noukpozounkou, M. M. Tanu
Publikováno v:
Journal of Applied Meteorology. 42:1355-1368
Gauge data from a West African network of 920 stations are used to assess Tropical Rainfall Measuring Mission (TRMM) satellite and blended rainfall products for 1998. In this study, mean fields, scattergrams, and latitudinal transects for the months
Publikováno v:
Journal of Applied Meteorology. 41:1065-1080
A bias-adjusted radar rainfall product is created and used for evaluation of two satellite rainfall estimation algorithms. Three years of collocated rainfall estimates from radar, rain gauges, a microwave satellite algorithm, and a multispectral (vis
Autor:
Song Yang, Thomas T. Wilheit, Robert F. Adler, D.-B. Shin, Christian D. Kummerow, William S. Olson, Grant W. Petty, Ralph Ferraro, Yang Hong, Jeffrey R. McCollum
Publikováno v:
Journal of Applied Meteorology. 40:1801-1820
This paper describes the latest improvements applied to the Goddard profiling algorithm (GPROF), particularly as they apply to the Tropical Rainfall Measuring Mission (TRMM). Most of these improvements, however, are conceptual in nature and apply equ
Publikováno v:
Journal of Applied Meteorology. 39:1071-1086
The Global Precipitation Climatology Project (GPCP) established a multiyear global dataset of satellite-based estimates of monthly rainfall accumulations averaged over a grid of 2.5° × 2.5° geographical boxes. This paper describes an attempt to qu