aermet
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aermet [2025/05/15 02:47] – murilogerber | aermet [2025/05/15 11:05] (current) – [3.2.3. Upper Air Data] murilogerber | ||
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- | ============3. AERMET | + | ====== 3. AERMET ====== |
With the output data from [[aersurface|AERSURFACE]], | With the output data from [[aersurface|AERSURFACE]], | ||
- | =====3.1 Introduction ===== | ||
- | **AERMET** is a meteorological preprocessor used with the [[aermod|AERMOD]] air dispersion model. Its main function is to process surface and upper air meteorological data to generate the necessary input files for [[aermod|AERMOD]] simulations. **AERMET** calculates key atmospheric parameters such as wind profiles, atmospheric stability, temperature gradients, and turbulence characteristics. These parameters are essential for accurately modeling how pollutants disperse in the atmosphere. | + | ===== 3.1. Introduction ===== |
- | ^ Aspect | + | **AERMET** is a meteorological |
- | | **Objective** | Preprocess | + | |
- | | **Inputs** | + | |
- | | **Outputs** | • **.SFC file** - Processed surface data (10m wind, temperature, | + | |
- | | | • **.PFL file** - Vertical atmospheric profiles (wind/ | + | |
+ | ^ Aspect ^ Details ^ | ||
+ | | Objective | Preprocess meteorological data for [[aermod|AERMOD]], | ||
+ | | Inputs | Surface data, upper-air sounding (radiosonde), | ||
+ | | Outputs | • '' | ||
+ | ===== 3.2. Required Files for AERMET ===== | ||
- | ===== 3.2 Required Files for AERMET ===== | + | ==== 3.2.1. AERMET Executable ==== |
- | + | First, download | |
- | ==== 3.2.1 AERMET Executable ==== | + | |
- | Primeiro, precisamos fazer o download | + | |
- | + | ||
- | Procure pela secao **MODEL CODE** e clique no executavel compativel com sua versao operacional conforme mostra na [[#Figure 1|Figure 1]], e extraia o arquivo baixado na pasta: '' | + | |
+ | Navigate to the **MODEL CODE** section and click the executable compatible with your operating system version, as shown in [[#Figure 1|Figure 1]]. Extract the downloaded file to the folder: | ||
+ | '' | ||
== Figure 1 == | == Figure 1 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{: | + | {{: |
<WRAP center> | <WRAP center> | ||
- | **Figure 1:** Download the **AERMET** executable according to its specifications | + | Figure 1: Download the AERMET executable according to its specifications. |
</ | </ | ||
</ | </ | ||
- | ==== 3.2.2 Surface Data ==== | + | ==== 3.2.2. Surface Data ==== |
- | Para baixar os dados de superficie, acesse o site [[https:// | + | To download surface data, access the [[https:// |
== Figure 2 == | == Figure 2 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{: | + | {{: |
<WRAP center> | <WRAP center> | ||
- | **Figure 2:** Clique no ano de 2024. | + | Figure 2: Click on the year 2024. |
</ | </ | ||
</ | </ | ||
- | Agora procure pelo arquivo chamado | + | Now search for the file named '' |
- | Por fim, renomeie o arquivo para '' | + | '' |
+ | Finally, rename the file to '' | ||
== Figure 3 == | == Figure 3 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{:surface2024.png |Figure 3 – Dados de Superficie}} | + | {{:surfacepasta.png |Figure 3 – Surface data}} |
<WRAP center> | <WRAP center> | ||
- | **Figure 3:** Dados de superficie. | + | Figure 3: Organized raw surface data file. |
</ | </ | ||
</ | </ | ||
- | ==== 3.2.3 Upper Air Data ==== | ||
- | Por fim, precisamos fazer o download dos dados de sondagem, acessando o site [[https:// | ||
- | Faca o downlaod conforme mostrado na [[#Figure 4|Figure 4]], e extraia o arquivo na pasta '' | ||
- | == Figure 4 == | + | ==== 3.2.3. Upper Air Data ==== |
+ | Lastly, download the radiosonde data from the [[https:// | ||
+ | Download the file as shown in [[#Figure 4|Figure 4]], and extract it to: | ||
+ | '' | ||
+ | == Figure 4 == | ||
<WRAP box center> | <WRAP box center> | ||
- | {{:USM.png |Figure 4 – AERSURFACE | + | {{:USM.png |Figure 4 – Radiosonde data download}} |
<WRAP center> | <WRAP center> | ||
- | **Figure 4:** faca o download do arquivo | + | Figure 4: Download the file '' |
</ | </ | ||
</ | </ | ||
- | Renomomeie o arquivo para '' | + | |
+ | Rename the file to '' | ||
== Figure 5 == | == Figure 5 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{: | + | {{: |
<WRAP center> | <WRAP center> | ||
- | **Figure 5:** Renomeie o arquivo e o envie para a nova pasta. | + | Figure 5: Rename the file and move it to the new folder. |
</ | </ | ||
</ | </ | ||
- | ===== 3.3 Configurando o AERMET ===== | ||
- | Agora que temos todos os dados de entradas necessarios para rodar o aermet, iremos separar o processamento em 2 estagios: | ||
- | |||
- | * **Stage 1**: Extracts the surface and upper air data from files in which the data are stored in specific archive formats. The quality of the surface, upper air, and site-specific or prognostic data is also assessed during Stage 1; | ||
- | * **Stage 2**: Reads the output from Stage 1, calculates the boundary layer parameters required by [[aermod|AERMOD]], | ||
- | Podemos ver um exemplo desse fluxograma na [[#Figure X|Figure X]]: | + | ===== 3.3. Configuring AERMET ===== |
+ | Now that all required input data is ready, we will split the processing into two stages: | ||
+ | * Stage 1: Extracts surface and upper-air data from archived formats and performs quality control. | ||
+ | * Stage 2: Processes Stage 1 outputs to calculate boundary layer parameters for [[aermod|AERMOD]]. | ||
- | == Figure | + | The workflow is illustrated in [[#Figure |
+ | == Figure 6 == | ||
<WRAP box center> | <WRAP box center> | ||
- | {{:FLUXOAERMET.png |Figure | + | {{:AERMETSTG.png |Figure |
<WRAP center> | <WRAP center> | ||
- | **Figure | + | Figure |
</ | </ | ||
</ | </ | ||
- | ==== 3.3.1 AERMET STAGE 1 ==== | ||
- | Crie um documento de texto na pasta '' | + | ==== 3.3.1. AERMET STAGE 1 ==== |
- | + | Create a text file named '' | |
- | < | + | |
- | ** Stage 1 | + | |
- | job | + | |
- | messages | + | |
- | report | + | |
- | | + | |
+ | < | ||
upperair | upperair | ||
- | ** Upper air data for Bloomington, | + | ** Upper air data for Bloomington, |
- | | + | data .\Upper_Air_data\USM.txt IGRA |
- | | + | extract upper.iqa |
- | | + | location 00074560 40.15N 89.33W 5 179.2 |
- | | + | xdates 2024/1/1 to 2024/1/2 |
- | | + | qaout upper.oqa |
surface | surface | ||
- | ** | + | ** Surface data for Central IL, Bloomington/Normal |
- | | + | data .\Surface_data\724397-54831-2024.dat ISHD |
- | | + | extract surface.iqa |
- | | + | qaout surface.oqa |
- | | + | location 54831 40.66N 89.69W 5 |
- | | + | xdates 2024/1/1 to 2024/1/2 |
</ | </ | ||
- | === 3.3.1.1 | + | === 3.3.1.1. Stage 1 AERMET Configuration |
+ | == JOB Section == | ||
+ | | Line | Description | | ||
+ | | messages m1.mes | Log file storing processing messages | | ||
+ | | report m1.rpt | Detailed report file with processing results | | ||
- | == Seção JOB == | + | == UPPERAIR Section |
- | | **Linha** | + | | Line | Description |
- | | `messages | + | | data .\Upper_Air_data\USM.txt IGRA | Path to raw radiosonde data in IGRA format | |
- | | `report | + | | extract upper.iqa | Output file with extracted data (pre-QA) | |
+ | | location 00074560 40.15N 89.33W 5 179.2 | Station details: \ • Code: 00074560 \ • Coordinates: | ||
+ | | xdates 2024/1/1 to 2024/ | ||
+ | | qaout upper.oqa | Final post-QA output file | | ||
- | == Seção UPPERAIR | + | == SURFACE Section |
- | | **Linha** | + | | Line | Description |
- | | `data .\Upper_Air_data\USM.txt IGRA` | Caminho para dados brutos de radiossondagem no formato IGRA | | + | | data .\Surface_data\724397-54831-2024.dat ISHD | Surface data in ISHD format (Integrated Surface Hourly Data) | |
- | | `extract | + | | extract |
- | | `location | + | | qaout surface.oqa | Validated data ready for use | |
- | | `xdates 2024/1/1 to 2024/12/31` | + | | location |
- | | `qaout | + | | xdates 2024/1/1 to 2024/12/31 | Time window matching |
- | == Seção SURFACE == | + | ==== 3.3.2. AERMET STAGE 2 ==== |
- | | **Linha** | + | Create another text file named '' |
- | | `data .\Surface_data\724397-54831-2024.dat ISHD` | Dados superficiais no formato ISHD (Integrated Surface Hourly Data) | | + | |
- | | `extract surface.iqa` | + | |
- | | `qaout surface.oqa` | + | |
- | | `location 54831 40.66N 89.69W 5` | Identificação da estação: \\ • Código WBAN: 54831\\ • Coordenadas: | + | |
- | | `xdates 2024/1/1 to 2024/ | + | |
- | + | ||
- | == Fluxo de Processamento == | + | |
- | < | + | |
- | [USM.txt] → (extração) → [upper.iqa] → (QA) → [upper.oqa] | + | |
- | [724397-54831-2024.dat] → (extração) → [surface.iqa] → (QA) → [surface.oqa] | + | |
- | </ | + | |
- | + | ||
- | === 3.3.1.2 Observações Técnicas === | + | |
- | • **Formatos Suportados**: | + | |
- | * IGRA para dados de altitude | + | |
- | * ISHD para dados de superfície | + | |
- | • **Controle de Qualidade (QA)**: Remove dados inconsistentes (ex: vento > 50 m/s) | + | |
- | • **Sincronia Temporal**: Ambos conjuntos usam o mesmo período (2024) | + | |
- | ==== 3.3.2 AERMET STAGE 2 ==== | + | |
- | + | ||
- | Agora criaremos um outro documento de texto nessa mesma pasta chamado | + | |
- | + | ||
- | < | + | |
- | ** Stage 2 | + | |
- | + | ||
- | JOB | + | |
- | MESSAGES | + | |
- | REPORT | + | |
+ | < | ||
UPPERAIR | UPPERAIR | ||
- | | + | QAOUT upper.oqa |
SURFACE | SURFACE | ||
- | | + | QAOUT surface.oqa |
METPREP | METPREP | ||
- | + | OUTPUT METAR.SFC | |
- | | + | PROFILE METAR.PFL |
- | PROFILE | + | LOCATION 000001 40.47N 88.97W 0 |
- | + | METHOD REFLEVEL SUBNWS | |
- | | + | METHOD WIND_DIR RANDOM |
- | METHOD | + | NWS_HGT WIND 6.1 |
- | METHOD | + | AERSURF BL_2024_Imp_Can.sfc |
- | NWS_HGT | + | |
- | + | ||
- | + | ||
- | | + | |
</ | </ | ||
- | === 3.3.2.1 | + | === 3.3.2.1. |
- | + | == METPREP | |
- | == Seção JOB == | + | | Line | Description |
- | | **Linha** | + | | OUTPUT METAR.SFC | Processed surface data output file | |
- | | `MESSAGES | + | | PROFILE METAR.PFL | Processed vertical profiles output file | |
- | | `REPORT | + | | LOCATION 000001 40.47N 88.97W 0 | Site details: \ • Code: 000001 \ • Coordinates: 40.47N 88.97W \ • Reference height: 0m | |
- | + | | METHOD REFLEVEL SUBNWS | Reference height method | |
- | == Seção UPPERAIR | + | | METHOD WIND_DIR RANDOM | Wind direction handling for missing data (random imputation) |
- | | **Linha** | + | | NWS_HGT WIND 6.1 | NWS standard wind measurement height |
- | | `QAOUT | + | | AERSURF BL_2024_Imp_Can.sfc | Surface characteristics file from [[aersurface|AERSURFACE]] | |
- | + | ||
- | == Seção SURFACE == | + | |
- | | **Linha** | + | |
- | | `QAOUT | + | |
- | + | ||
- | == Seção | + | |
- | | **Linha** | + | |
- | | `OUTPUT | + | |
- | | `PROFILE | + | |
- | | `LOCATION | + | |
- | | `METHOD | + | |
- | | `METHOD | + | |
- | | `NWS_HGT | + | |
- | | `AERSURF | + | |
- | + | ||
- | === 3.3.2.2 Observações Técnicas === | + | |
- | • **Entradas**: | + | |
- | - Dados já validados (`.oqa`) do Estágio 1 | + | |
- | • **Saídas Principais**: | + | |
- | - `.SFC`: Dados de superfície formatados | + | |
- | - `.PFL`: Perfis verticais para o AERMOD | + | |
- | • **Métodos Especiais**: | + | |
- | - `RANDOM`: Preenchimento aleatório de direção do vento para dados faltantes | + | |
- | - `SUBNWS`: Ajuste de altura conforme padrão National Weather Service | + | |
- | • **AERSURFACE**: | + | |
===== 3.4 Running AERMET ===== | ===== 3.4 Running AERMET ===== | ||
+ | Open Command Prompt and run: | ||
- | Configurado os estagios, iremos agora rodar esses arquivos no **CMD**. Abra o Prompt de Comando e digite: | + | - Navigate to the folder: '' |
- | '' | + | - Execute Stage 1: '' |
+ | - Execute Stage 2: '' | ||
== Figure 8 == | == Figure 8 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{: | + | {{: |
<WRAP center> | <WRAP center> | ||
- | **Figure 8:** Executando o estagio | + | Figure 8: Executing Stage 1. |
</ | </ | ||
</ | </ | ||
- | |||
- | Feito isso, faca o mesmo com o estagio 2, digitando '' | ||
== Figure 9 == | == Figure 9 == | ||
- | |||
<WRAP box center> | <WRAP box center> | ||
- | {{: | + | {{: |
<WRAP center> | <WRAP center> | ||
- | **Figure 9:** Executando o estagio | + | Figure 9: Executing Stage 2. |
</ | </ | ||
</ | </ | ||
- | With this completed, we can proceed to [[aermap|AERMAP]]. | + | ===== What is next? ===== |
+ | |||
+ | With this completed, we can proceed to [[aermap|AERMAP]], which is the last processor before moving on to [[aermod|AERMOD]]. | ||
+ | |||
+ | Attachment | ||
+ | Here you can download the folder I used to create this document. It is important that you use it only for comparison purposes or in case you are unable to make progress on the project. Attached: {{ : |
aermet.1747302443.txt.gz · Last modified: 2025/05/15 02:47 by murilogerber