Measurement of Precipitation(Sattelite)

7/29/2019 Measurement of Precipitation(Sattelite)

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Measurement ofPrecipitation:Radar and Satellite

EstimatesEngr. Dielene Fajutagana-De Guzman


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MESOSCALE MODEL VERSION 5

MM5 is a limited-area, nonhydrostatic, terrain-

following sigma-coordinate model designed tosimulate or predict mesoscale atmosphericcirculation

the most popular mesoscale weather modeland is used in research worldwide

developed at the National Center of

Atmospheric Research in Boulder Colorado, andat Pennsylvania State University


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The domain : outer and nested

Outer Domain has a 60 km horizontal resolution

the largest domain, consisting of 91 by 91 gridpoints making an approximately 5500 by 5500km square centered in the Philippines

domain coverage is from 105E-152E and 5Sto 35N


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Outer domain

is designed to simulate larger scale featuresthat are affecting the Philippine region and

adjacent areas, for example monsoons, tropicalcyclones and other tropical weatherdisturbances


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Nested withinthe outerdomain is a 20-

km resolutiondomain (shadedarea) consistingof 71 by 71 grid

points thatcovers thePhilippineislands. Thisdomain isdesigned tosimulate small

scale features.


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7/25Wave Model

Wave Models Recent wave forecasting models are called

Numerical/Spectral models because theseevolved from the time-dependent energybalance equation of the wave spectrum

Such models treat the various processes thatcontrol ocean waves. (e.g. growth, propagationand dissipation)

used for operational purposes over the AtlanticOcean and Mediterranean Sea


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11/25HIGH RESOLUTION MODEL (HRM)

regional numerical model used for short-term forecasts

developed by Detlev Majewski of theDeutsche Wetterdienst (DWD), the

meteorological office of Germany


12/25HIGH RESOLUTION MODEL (HRM)

based on a set of equations that describethe evolution of variables such as

temperature, wind speed, humidity, andpressure that define the weather or thestate of the atmosphere


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15/25The Eta Model

a state-of-the art atmospheric modelpopularly known for its quasi-horizontal

vertical coordinate

was initially developed in the 1970's in the

former Yugoslavia (Mesinger & Janjic,1974), was upgraded in the early 1980s(Janjic, 1984; Mesinger et al., 1988) andsince then has undergone further

developments notably at the NCEP (Janjic,1990; Mesinger & Lobocki, 1991)


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Other Models

Eta Model

Storm Surge Model


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The six panels in figure 1 are as follows:

Upper-Left: 500mb Heights and

Vorticity Upper-Middle: Surface Pressure and

1000-500mb Thickness

Upper-Right: 6hr accumulatedPrecipitation

Lower-Left: 700mb Heights andRelative Humidity

Lower-Middle: 850mb Heights,Temperatures, and Relative Humidity

Lower-Right: Total AccumulatedPrecipitation


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At 4:00 a.m., today, Tropical Depressionand was named "JOLINA" was estimated

based on all available data at 390 kmWest of Subic, Zambales (14.6N,116.4E) with maximum sustained windsof 55 kph near the center. It is forecast tomove Northwest at 11 kph.

Measurement of Precipitation(Sattelite)

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