Difference between revisions of "Eutrofização Albufeiras"

Revision as of 16:01, 11 August 2009

Overview

It is intended to produce a step-by-step procedure to run reservoir model CE-QUAL-W2

Where to Start?

1. If you need to have first insights on CEQUAL-W2 model, applications already done see \\datacenter\Albufeiras_Eutrofizacao\ComoFazer\0.Bibliografia
2. If you already feel ready to start, initiate with collecting all the data available for your reservoir and watershed in snirh (http://snirh.pt). First use the shapes in \\datacenter\Albufeiras_Eutrofizacao\Produtos\ProjectosGIS\ShapesBase to check which flow and quality stations are in the reservoir and watershed. Then, go to snirh to download the desired data from that stations.
3. Follow the steps in \\datacenter\Albufeiras_Eutrofizacao\ComoFazer

Tasks

1.Get Input Data

Water Quantity in the reservoir

1. Go to http://snirh.pt
2. For water quantity in the reservoir click "Albufeiras->Dados de base".
3. Choose your desired station (reservoir name) and click "Seleccionar estações"
4. click "Validar Lista". Check below which parameters to choose to download (holding shift or ctrl while clicking will perform multiple selections)
5. After all desired parameters selected, click "Ver/Guardar Dados"
6. Wait until all data is dowloaded and the click upper right button "Export CSV"
7. Choose a folder and a name for your file (use the recommended structure)
8. Open and transform your data using "Data->Text to Columns" then save the .csv file into excel .xls.

List of input data needed:

Consumo agrícola mensal
Consumo municipal mensal
Descarga de fundo mensal
Descarga de superfície mensal
Volume armazenado mensal (final do mês) 

Cota da Albufeira - recommned to download together with the next to a different file because is daily data (sometimes also hourly)
Volume armazenado (convencional) - recommned  to download together with the previous to a different file because is daily data

Water Quality in the reservoir

1. Go to http://snirh.pt
2. For water quality in the reservoir click "Rios->Dados de base(qualidade)".
3. Choose your desired station (reservoir name) and click "Seleccionar estações"
4. click "Validar Lista". Check below which parameters to choose to download (holding shift or ctrl while clicking will perform multiple selections)
5. After all desired parameters selected, click "Ver/Guardar Dados"
6. Wait until all data is dowloaded and the click upper right button "Export CSV"
7. Choose a folder and a name for your file (use the recommended structure)
8. Open and transform your data using "Data->Text to Columns" then save the .csv file into excel .xls.

List of input data needed:

Temperatura da amostra
Transparência
Nitrato Total (em NO3)
Amónia Total  (em NH4)
Nitrito Total (em NO2)
Azoto Orgânico(ou Azoto Kjeldahl)
Azoto Total
Ortofosfato Total
Fósforo Total
Clorofila-a
Fitoplancton ... (Espécies de algas - normalmente não existe esta informação) 
Sólidos Suspensos Totais
Oxigénio dissolvido (normalmente aparecem vários)
CBO 5dias
Ferro dissolvido
Ferro total
Ferro particulado

Meteorology - need to know which station are closer. Use ArcGIS, reservoir and station shapefiles in \\Datacenter\Albufeiras_Eutrofizacao\Produtos\ProjectosGIS\ShapesBase to check them. See the video using MOHID GIS in http://screencast.com/t/vOa6esZAjFL

1. Go to http://snirh.pt
2. For meteorology click "Meteorologia->Dados de base".
3. Choose your desired stations and click "Seleccionar estações"
4. click "Validar Lista". Check below which parameters to choose to download (holding shiftor ctrl while clicking will perform multiple selections)
5. After all desired parameters selected, click "Ver/Guardar Dados"
6. Wait until all data is dowloaded and the click upper right button "Export CSV"
7. Choose a folder and a name for your file (use the recommended structure)
8. Open and transform your data using "Data->Text to Columns" then save the .csv file into excel .xls.

List of input data needed:

Temperatura do ar média diária
Humidade relativa média diária  - for dew point calculation
Velocidade do vento médio diário

Direcção do vento horário - recommned to download to a different file because is hourly data

Water Quantity in the incoming rivers - need to know which station are in the inflowing rivers. Use ArcGIS, reservoir, river and station shapefiles in \\Datacenter\Albufeiras_Eutrofizacao\Produtos\ProjectosGIS\ShapesBase to check them. See the video using MOHID GIS in http://screencast.com/t/vOa6esZAjFL

1. Go to http://snirh.pt
2. For water quantity in the river click "Rios->Dados de base(quantidade)".
3. Choose your desired station and click "Seleccionar estações"
4. click "Validar Lista". Check below which parameters to choose to download (holding shift or ctrl while clicking will perform multiple selections)
5. After all desired parameters selected, click "Ver/Guardar Dados"
6. Wait until all data is dowloaded and the click upper right button "Export CSV"
7. Choose a folder and a name for your file (use the recommended structure)
8. Open and transform your data using "Data->Text to Columns" then save the .csv file into excel .xls.

List of input data needed:

Caudal médio diário
Nível médio diário (se não existir caudal)

Water Quality in the incoming rivers- need to know which station are in the inflowing rivers. Use ArcGIS, reservoir, river and station shapefiles in \\Datacenter\Albufeiras_Eutrofizacao\Produtos\ProjectosGIS\ShapesBase to check them. See the video using MOHID GIS in http://screencast.com/t/vOa6esZAjFL

1. Go to http://snirh.pt
2. For water quality in the river click "Rios->Dados de base(qualidade)".
3. Choose your desired station and click "Seleccionar estações"
4. click "Validar Lista". Check below which parameters to choose to download (holding shift or ctrl while clicking will perform multiple selections)
5. After all desired parameters selected, click "Ver/Guardar Dados"
6. Wait until all data is dowloaded and the click upper right button "Export CSV"
7. Choose a folder and a name for your file (use the recommended structure)
8. Open and transform your data using "Data->Text to Columns" then save the .csv file into excel .xls.

List of input data needed:

Temperatura da amostra
Nitrato Total (em NO3)
Amónia Total  (em NH4)
Nitrito Total (em NO2)
Azoto Orgânico(ou Azoto Kjeldahl)
Azoto Total
Ortofosfato Total
Fósforo Total
Clorofila-a
Fitoplancton ... (Espécies de algas - normalmente não existe esta informação) 
Sólidos Suspensos Totais
Oxigénio dissolvido (normalmente aparecem vários)
CBO 5dias
Ferro dissolvido
Ferro total

How to prepare input data for model to run see \\datacenter\Albufeiras_Eutrofizacao\ComoFazer\1.PreparaInputs

2.Check Data

Note It is important to check input data for a) outliers b) detection limit values c) understanding the reservoir or river dynamic. As so, always perform time serie graphs for each property or/and flow. Also ploting several related properties (e.g. nutrients and chlorofila) or several meteorological stations will help in understanding the data consistency.

3.Create Bathymetry

1. See in which "carta militar" your reservoir is in, opening in MOHID GIS the reservoir shapefiles and the file Portugal_cartas.img (as Background Image) from \\datacenter\Albufeiras_Eutrofizacao\Produtos\ProjectosGIS\imagens
2. Go to \\Kepler\DataCenter1\DataCenter\DadosBase\Terra\Cartas Militares. The folders are named with the range number of the "carta militares". Ennter in the directory where your carta is ad copy it to your directory.
3. Check if the .jpg file is associated with one .jpgw. If it is, you can proceed to the next step. If not search for assistance.
4. Open your just copied image in MOHID GIS using the steps in How to Import georeferenced images in MOHID GIS

4. Run CE-QUAL model

In order to see some project examples check \\datacenter\Albufeiras_Eutrofizacao\ComoFazer\2.CorreCeQual\ExemplosHenrique The .exe file to run the model will be also avilable there

5. Evaluating Results

FAQ

Q: What is the software that I need to install?

A: For Cequal you only will need an .exe file that will be distributed. For the first steps you will need any GIS software that opens shapefiles and georeferenced images (ArcGIS, MohidGIS, etc.). If any doubt on how to install them call David. IE or Mozilla web browser will work just fine in www.snirh.pt

Q: Where do I find data?

A: All the data needed up to now is from http://snirh.pt. Water flows in the reservoir, water height and volumes are taken from "Albufeiras" network. However, water quality in the reservoir is taken from "Rios->Dados de base (qualidade)"; this may cause confusion because reservoir data is in river network. Water flow and water quality entering in the reservoir from tributaries are taken from "Rios->Dados de base (qualidade)" and "Rios->Dados de base (quantidade)" - remember to check first which stations are inside the reservoir watershed.

Q: What is the desired period time of the simulation?

A: The desired period of simulation is around 10-20 years. The best practice is not to filter data (as much of it e.g. water quality has not yet reached 10 years) because all the data may be needed.

Q: My excel 2003 doesn't open big csv files (with more than 65545 lines. What can I do?

A: Use excel 2007. Use Data-->TextToColumns to spread your csv data on several columns.

Q: How to convert excel dates into Julian dates?

A: Define a year where to start as for example 1990 (e.g. first year of simulation). 1-1-1990 will be your julian day 1, all other days will be in this reference. To convert excel dates to julian dates in this example do Julian date = Excel Date - (1-1-1990) + 1, meaning that you have to subtract all excel dates with the date of your first julian date (1-1-1990 in the example) and add 1 because 1-1-1990 has to be day one and not day zero, and so on.

Support Material

• The kick-off internal meeting video is available at \\datacenter\Albufeiras_Eutrofizacao\Produtos\Apresentacoes

• For information about the dam for each reservoir: http://cnpgb.inag.pt/gr_barragens/gbportugal/Lista.htm

Video tutorials

• Step 0 - identify your Albufeira in MOHID GIS!