Eutrofização Albufeiras

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

Input Data

To know where to go see FAQ about where to go get data. List of input data needed:

Meteorologia

Temperatura do ar média diária
Humidade relativa média diária (para cálculo ponto orvalho)
Velocidade do vento médio diário
Direcção do vento horário

Quantidade de água na Albufeira

Consumo agrícola mensal
Consumo municipal mensal
Descarga de fundo mensal
Descarga de superfície mensal
Volume armazenado mensal (final do mês) 
Cota da Albufeira
Volume armazenado (convencional)

Qualidade da água na Albufeira (para validação)

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 mg/l (normalmente aparecem vários)
CBO 5dias
Ferro dissolvido
Ferro total
Ferro particulado

Quantidade de água nos rios afluentes

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

Qualidade de água nos rios afluentes (o mesmo do da albufeira)

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
Espécies de algas (normalmente não existe esta informação) 
Sólidos Suspensos Totais
Oxigénio dissolvido mg/l (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

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

Running the 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

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.

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