qgis-nasa-opera-plugin

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qgis-nasa-opera-plugin

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A QGIS plugin for searching and visualizing NASA OPERA data

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# NASA OPERA QGIS Plugin

[![QGIS Plugin](https://img.shields.io/badge/QGIS-Plugin-green.svg)](https://plugins.qgis.org/plugins/nasa_opera)
[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

A QGIS plugin for searching, visualizing, and analyzing NASA OPERA (Observational Products for End-Users from Remote Sensing Analysis) satellite data products.

## About NASA OPERA

OPERA is a NASA project that provides analysis-ready data products derived from satellite observations. The project produces near-real-time and systematic global data products using optical and SAR satellite imagery.

Learn more: [NASA OPERA Project](https://www.jpl.nasa.gov/go/opera)

## Features

- **Search Interface**: Search NASA OPERA products by location, date range, and dataset type
- **Footprint Visualization**: Display search result footprints as vector layers on the map
- **Raster Display**: Visualize OPERA raster data directly in QGIS with cloud-optimized streaming
- **Virtual Mosaics**: Combine multiple granules into seamless mosaics via GDAL VRT
- **OpenGeoAgent Launch**: Open the OpenGeoAgent chat panel from the NASA OPERA toolbar
- **Multiple Datasets**: Support for all OPERA products:
  - DSWX-HLS: Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2
  - DSWX-S1: Dynamic Surface Water Extent from Sentinel-1
  - DIST-ALERT-HLS: Land Surface Disturbance Alert
  - DIST-ANN-HLS: Land Surface Disturbance Annual
  - RTC-S1: Radiometric Terrain Corrected SAR Backscatter
  - CSLC-S1: Coregistered Single-Look Complex
- **Settings Panel**: Configure Earthdata credentials, display options, and search defaults
- **Update Checker**: Check for plugin updates from GitHub

## Video Tutorial

[QGIS NASA OPERA Plugin + AI Agent (Full Tutorial)](https://youtu.be/8J37g9NxHmM)

[![Video Tutorial](https://img.youtube.com/vi/8J37g9NxHmM/maxresdefault.jpg)](https://youtu.be/8J37g9NxHmM)

## Prerequisites

### NASA Earthdata Account

To access NASA OPERA data, you need a free NASA Earthdata account:

1. Go to [NASA Earthdata Registration](https://urs.earthdata.nasa.gov/users/new)
2. Create an account
3. Configure your credentials in the plugin settings

### Python Dependencies

Open **NASA OPERA > Settings > Dependencies** and click **Install Dependencies**
to install these packages in an isolated plugin environment:

- `earthaccess` - NASA Earthdata search and download
- `geopandas` - Geospatial data manipulation
- `shapely` - Geometry operations
- `pandas` - Data analysis

The isolated environment is created under `~/.qgis_nasa_opera/` and is added
to the plugin path automatically when QGIS loads NASA OPERA.

## Installation

### Method 1: From QGIS Plugin Manager (Recommended)

1. Launch QGIS
2. Go to `Plugins` → `Manage and Install Plugins...`
3. Switch to the `All` tab, search for `NASA OPERA`, select it, and click `Install Plugin`

### Method 2: Install from Source

1. Clone or download this repository:

```bash
   git clone https://github.com/opengeos/qgis-nasa-opera-plugin.git
   cd qgis-nasa-opera-plugin
   ```

2. Run the installation script:

**Linux/macOS:**

```bash
   ./install.sh
   ```

**Windows/Cross-platform (Python):**

```bash
   python install.py
   ```

3. Restart QGIS

4. Enable the plugin:
   - Go to **Plugins > Manage and Install Plugins...**
   - Search for "NASA OPERA"
   - Check the box to enable it

### Method 3: Manual Installation

1. Download or clone this repository

2. Copy the `nasa_opera` folder to your QGIS plugins directory:
   - **Linux**: `~/.local/share/QGIS/QGIS3/profiles/default/python/plugins/`
   - **macOS**: `~/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/`
   - **Windows**: `%APPDATA%\QGIS\QGIS3\profiles\default\python\plugins\`

3. Restart QGIS and enable the plugin

## Usage

### Basic Workflow

1. **Open the Plugin**: Click the NASA OPERA icon in the toolbar or go to **NASA OPERA > NASA OPERA Search**

2. **Select Dataset**: Choose the OPERA product you want to search for

3. **Set Search Parameters**:
   - **Bounding Box**: Enter coordinates manually or click "Use Map Extent"
   - **Date Range**: Select start and end dates
   - **Max Results**: Set the maximum number of results

4. **Search**: Click the "Search" button to find available data

5. **View Results**:
   - **Show Footprints**: Display the spatial coverage of search results
   - **Display Single**: Load a specific granule's raster data
   - **Display Mosaic**: Create a virtual mosaic from selected granules

### AI Assistant

The NASA OPERA toolbar includes an AI Assistant button that opens the
OpenGeoAgent chat panel. If OpenGeoAgent is not installed or enabled, NASA
OPERA prompts you to install it from the QGIS Plugin Manager:

1. Open **Plugins > Manage and Install Plugins...**
2. Search for **OpenGeoAgent** and click **Install Plugin**
3. Click the AI Assistant button in the NASA OPERA toolbar again

OpenGeoAgent owns the chat interface, LLM provider settings, and AI dependency
installation.

### Settings

Access settings via **NASA OPERA > Settings**:

- **Dependencies**: Install and verify required Python packages
- **Credentials**: Configure your NASA Earthdata username and password
- **Display**: Customize footprint styles and default colormap
- **Advanced**: Set default search parameters and cache options

### First-Time Authentication

When you first run a search, the plugin will authenticate with NASA Earthdata:

1. If you haven't configured credentials, earthaccess will prompt for login
2. Credentials are stored in `~/.netrc` for future use
3. You can also configure credentials in the Settings panel

## Development

### Project Structure

```
qgis-nasa-opera-plugin/
├── nasa_opera/                 # Plugin source code
│   ├── __init__.py            # Plugin entry point
│   ├── nasa_opera.py          # Main plugin class
│   ├── metadata.txt           # Plugin metadata
│   ├── deps_manager.py        # Dependency checks and installer
│   ├── uv_manager.py          # uv bootstrap helper for dependency installs
│   ├── dialogs/               # UI widgets
│   │   ├── opera_dock.py      # Main search interface
│   │   ├── settings_dock.py   # Settings panel
│   │   └── update_checker.py  # Update checker dialog
│   └── icons/                 # Plugin icons
├── install.py                 # Python installation script
├── install.sh                 # Bash installation script
├── package_plugin.py          # Python packaging script
├── package_plugin.sh          # Bash packaging script
├── README.md                  # This file
└── LICENSE                    # MIT License
```

### Packaging for Distribution

To create a distributable zip file:

```bash
python package_plugin.py
# or
./package_plugin.sh
```

This creates `nasa_opera-{version}.zip` ready for upload to the QGIS Plugin Repository.

## Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (`git checkout -b feature/AmazingFeature`)
3. Commit your changes (`git commit -m 'Add some AmazingFeature'`)
4. Push to the branch (`git push origin feature/AmazingFeature`)
5. Open a Pull Request

## License

This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.

## Acknowledgments

- [NASA OPERA Project](https://www.jpl.nasa.gov/go/opera) for providing the data products
- [earthaccess](https://github.com/nsidc/earthaccess) for NASA Earthdata access
- [OpenGeoAgent](https://github.com/opengeos/GeoAgent/tree/main/qgis_geoagent/open_geoagent) for the QGIS chat panel
- [leafmap](https://github.com/opengeos/leafmap) for inspiration on the GUI design
- The QGIS community for the excellent GIS platform

## Support

- **Bug Reports**: [GitHub Issues](https://github.com/opengeos/qgis-nasa-opera-plugin/issues)
- **Feature Requests**: [GitHub Issues](https://github.com/opengeos/qgis-nasa-opera-plugin/issues)
- **Documentation**: [GitHub Wiki](https://github.com/opengeos/qgis-nasa-opera-plugin/wiki)

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