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7/29/2019 Hyd Genus Reng

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PROGRAM HYDGEN

prepared by

PSRI

May 2006


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PSR OPTGEN Hydrological Scenarios Generating Program 2

INDEX

1 OBJECTIVE.....................................................................................................................................3

2 EXECUTION....................................................................................................................................3

3 HYDGEN.DAT FILE DESCRIPTION.........................................................................................5


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1 OBJECTIVE

This report describes the program that generates the OPTGEN inflow scenarios, that

means, it generates the DATHISC.CSV and DATHINFXX.CSV data files using the SDDP

inflow data files, ARQ.USI andARQ.ASC.

The program, called HYDGEN, reads the following SDDP files:

ARQ.USI

ARQ.ASC

The OPTGEN files:

DATPARM.CSV

DATHCNF.CSV

And the control data file:

HYDGEN.DAT

And generates the following OPTGEN files:

DATHISC.CSV

DATHINFNN.CSV

2 EXECUTION

The hydro inflow scenarios generation, using the SDDP inflow data files, is performed

from the OPTGEN interface by pressing the button New in the hydro inflowscenarios screen as shown in the following picture:


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The scenario generation screen is shown in the following picture:

This screen allows selecting the SDDP inflow data file which contains the historical that

may be compatible with the OPTGEN study data files. After defining the historical file

directory, the following fields must be filled in:

Number of scenarios

Number of years of the scenario(s)

Initial year of each inflow scenario in the historical file

Occurrence Probability of each scenario

In addiction, the following options are also available:

Include MLT scenario (Mean Long Term)In this case it is calculated the inflow monthly average for all years of the longest

complete data interval of the historical file. The obtained values are repeated for

each one of the years of the scenarios.

Turn the negative inflows null


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3 HYDGEN.DAT FILE DESCRIPTION

This file contains the data of the inflow scenarios that will be generated by the

program. The file format is:

Record type 1

Field Column Type Description

1 1-11 A11 # SCENARIOS

2 13-16 I4 Number of scenarios (NS)

3 18-21 I4

Identifier to turn the negative

inflow null

(0=keep negative; 1=turn null)

Record type 2


1 1-11 A11 # YEARS

2 13-16 I4 Number of years of the scenarios

OBS: This is an optional record. If this field is not informed then the program will

consider as a default value the number of years of the study (DATPARM.CSV file).

Record type 3

This record is a header.

Record type 4For each one of the NS inflow scenarios:


1 1-4 I4 Scenario code

2 6-17 A12 Scenario Name

3 19-22 A4Initial year of the scenario in the historical

file

4 24-31 F8.0 Occurrence probability of the scenario

OBS: In the field INITIAL YEAR OF THE SCENARIO two type of data are accepted:

An integer number representing the initial year of the scenario in thehistorical file;

A key-word MLT representing the option of generating a scenarioconstituted by the inflow monthly mean of each hydrosite for the longest

complete data interval of the historical file.

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