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F. Joseph Turk, Sarah E. Ringerud, Yalei You, Andrea Camplani, Daniele Casella, Giulia Panegrossi, Paolo Sanò, Ardeshir Ebtehaj, Clement Guilloteau, Nobuyuki Utsumi, Catherine Prigent, and Christa Peters-Lidard

1. Introduction For many hydrological, climate, and weather forecasting applications, an important quantity is the amount of precipitation that falls on Earth’s surface over a given time interval, i.e., the surface precipitation rate. A fully global satellite-based precipitation estimate that can transition across changing Earth surface conditions and complex land–water boundaries is an important capability for proper evaluation of the precipitation produced or diagnosed in weather and climate

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Alberto Ortolani, Francesca Caparrini, Samantha Melani, Luca Baldini, and Filippo Giannetti

1. Introduction Current methods to measure rainfall include a variety of solutions, with the rain gauge still being considered the reference method. Retrieving the rain fallen on an area is not easy, due to its temporal and spatial variability, but its importance is paramount for the impact on human lives and the environment. For instance, spatial and temporal variability of rainfall can result in large variations in streamflow, and this is particularly relevant in small catchments with short

Open access
Allison E. Goodwell

1. Introduction The focus of this paper is on the following question: When looking for rainfall which way is best: Should I look north, south, east or west? Or should I, say, look multiple ways to make a much better guess? In prose, we will explore the predictability of precipitation at one location, given information about past precipitation at one or more surrounding locations. At your current location, the knowledge of “Did it rain here yesterday?” is likely somewhat predictive of today

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Zhe Li, Daniel B. Wright, Sara Q. Zhang, Dalia B. Kirschbaum, and Samantha H. Hartke

( Thompson et al. 2008 ) was used to provide microphysical simulation of clouds that are connected to satellite observation operators in radiance data assimilation, and Noah land surface model was used in atmospheric and land coupled simulation as well as within LIS spinup process. Boundary forcing came from the Global Forecast System ( Whitaker et al. 2008 ). Hourly accumulated rainfall fields (currently NU-WRF EDAS does not facilitate output temporal resolutions finer than hourly) are generated at 3-km

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Andrea Camplani, Daniele Casella, Paolo Sanò, and Giulia Panegrossi

of tests on low-frequency MW channels and their combinations, selected on the basis of previous studies on the MW spectrum dependencies on snowpack physical conditions. The most useful aspect of the algorithm is that it exploits channel frequencies common to most current and future microwave radiometers in space (from 23 to 90 GHz), and that it can be applied to both conically scanning and cross-track-scanning radiometers. In this study a comparison between the results obtained for the conically

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Nobuyuki Utsumi, F. Joseph Turk, Ziad S. Haddad, Pierre-Emmanuel Kirstetter, and Hyungjun Kim

in the Bayesian retrieval, which we call the “top-weighted profile,” are used as the estimated profile of the reflectivity. Fig . 5. Surface precipitation estimates for a frontal precipitation case on 14 Oct 2014, over the southeastern United States (GMI granule number 3556). Only the pixels with precipitation rate no less than 0.5 mm h −1 are shown. The parallel white solid lines show the boundaries of the GMI swath, and the white dashed line in between them is the location of the cross section

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