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NOAA (National Oceanic and Atmospheric Administration) Class

NOAA (National Oceanic and Atmospheric Administration) Class

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Open Dataset
Creators: National Oceanic and Atmospheric Administration (NOAA)
Publication Date: 1970
Creators: National Oceanic and Atmospheric Administration (NOAA)

NOAA’s CLASS (Comprehensive Large Array-data Stewardship System) is a web-based data repository that archives and distributes environmental data collected by various NOAA satellites and missions. CLASS provides access to a variety of data types, including:Environmental satellite data, weather data, other datasets. CLASS archives data from various NOAA satellite missions and instruments, including the Advanced Very High Resolution Radiometer (AVHRR), which captures global cloud cover, sea surface temperatures, and vegetation indices; the Geostationary Operational Environmental Satellites (GOES), which provide real-time weather monitoring and forecasting data; and the Joint Polar Satellite System (JPSS), which offers global environmental data for weather forecasting and climate monitoring. A key feature of CLASS is its role in long-term data preservation, ensuring that environmental information remains accessible for climate research and historical analyses. The system also provides user-friendly access, offering search and retrieval capabilities that allow users to locate and download specific datasets efficiently. The temporal coverage of datasets within CLASS varies by instrument and mission. AVHRR data is available from the late 1970s to the present, GOES data coverage starts from the 1970s and continues to current operations, and JPSS data has been available since 2011.

Sentinel Hub

Sentinel Hub

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Open Dataset
Creators: Sinergise
Publication Date: 1970
Creators: Sinergise

Sentinel Hub provides access to satellite imagery from various missions, including Sentinel-1, Sentinel-2, and Landsat satellites. It offers tools for visualizing, analyzing, and processing satellite data. Sentinel Hub provides access to a wide array of satellite imagery, including data from the Copernicus Sentinel missions (e.g., Sentinel-1, Sentinel-2), Landsat series, and commercial providers like PlanetScope. This extensive dataset supports diverse applications such as agriculture, forestry, land monitoring, and emergency response. The platform offers on-the-fly processing capabilities, allowing users to perform complex analyses without the need for local computational resources. This feature streamlines workflows and accelerates data processing tasks. Users can create custom processing scripts using Sentinel Hub’s scripting language, enabling tailored data analyses and visualization outputs to meet specific project requirements. Sentinel Hub provides access to historical satellite imagery dating back to the launch dates of respective missions. For instance, Sentinel-2 data is available from 2015 onwards, enabling users to analyze changes over the past decade.

Planet Labs

Planet Labs

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Open Dataset
Creators: Planet Labs Inc.
Publication Date: 2014
Creators: Planet Labs Inc.

Planet Labs offers high-resolution satellite imagery from its fleet of small satellites (Dove and SkySat). The platform provides access to detailed and frequent imagery for various applications such as monitoring and analysis. The satellites collect data across multiple spectral bands, including Red, Green, Blue, and Near-Infrared (NIR), facilitating diverse analyses such as vegetation health assessment and land cover classification. The constellation’s design allows for frequent revisits, with PlanetScope achieving near-daily coverage and SkySat capable of sub-daily tasking, essential for applications requiring up-to-date information. Planet Labs collects imagery covering up to 300 million square kilometers daily, resulting in a vast number of observations over time. PlanetScope imagery dates back to 2014, with 8-band data available from 2020. The RapidEye constellation, acquired by Planet Labs, provided imagery from 2009 until its retirement in 2020. In total, the dataset has data in a size exceeding 10 PB. Planet Labs’ dataset covers several sub-datasets, each corresponding to different satellite constellations and imaging capabilities:​

  • PlanetScope: Consists of hundreds of small satellites capturing imagery at approximately 3.7-meter resolution across four multispectral bands (Red, Green, Blue, NIR). This dataset supports applications like agricultural monitoring, forest management, and environmental assessment. ​

  • SkySat: Comprises around 15 satellites providing high-resolution imagery at 50-centimeter resolution, with capabilities for sub-daily tasking. SkySat data is valuable for detailed analyses, including infrastructure monitoring and urban planning. ​

  • RapidEye (Retired): Included five satellites that operated from 2009 to 2020, delivering 5-meter resolution imagery across five spectral bands (Blue, Green, Red, Red Edge, NIR). RapidEye data was utilized for applications such as land use mapping and crop monitoring

NASA Worldview

NASA Worldview

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Open Dataset
Creators: NASA's Earth Science Data and Information System (EOSDIS)
Publication Date: 2000
Creators: NASA's Earth Science Data and Information System (EOSDIS)

NASA Worldview is an interactive web-based tool that allows users to visualize and explore satellite imagery from NASA’s Earth Observing System. It offers access to over 1,200 global, full-resolution satellite imagery layers, allowing users to explore various datasets related to Earth’s atmosphere, land, oceans, and cryosphere. Many imagery layers are updated within three hours of observation, providing near real-time views of Earth’s conditions. This feature is particularly beneficial for time-sensitive applications such as wildfire management, air quality monitoring, and flood surveillance. Users can interactively browse, compare, animate, and download imagery. The platform supports visualization of natural events like wildfires, tropical storms, and volcanic eruptions through its “Events” tab. The dataset accessible through Worldview is extensive, with NASA’s Earth science data archive exceeding 100 PB. Worldview provides access to historical satellite imagery dating back to 2000, enabling users to explore changes over time. The dataset is organized into various sub-datasets, each focusing on specific earth observation parameters:​

  • Corrected Reflectance (True Color): Provides natural-looking images by combining data from specific spectral bands, useful for observing land surface, oceanic, and atmospheric features. ​

  • Chlorophyll-a Concentration: Offers data on the near-surface concentration of chlorophyll-a, aiding in the assessment of marine ecosystem productivity and health. ​

  • Photosynthetically Available Radiation (PAR): Displays the amount of light available for photosynthesis over the ocean and large bodies of water, measured in Einstein/m²/day. ​

  • Black Marble Nighttime Imagery: Provides nighttime light data, useful for assessing anthropogenic sources of light emissions and monitoring nighttime phenomena. ​

  • Brightness Temperature: Offers observations of brightness temperature, useful for distinguishing features in clouds and over clear land, as well as land, sea ice, and open water over polar regions during winter.

NOAA Coast Watch

NOAA Coast Watch

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Open Dataset
Creators: National Oceanic and Atmospheric Administration (NOAA)
Publication Date: 1990
Creators: National Oceanic and Atmospheric Administration (NOAA)

The NOAA CoastWatch program provides access to satellite data specifically focused on coastal and oceanographic observations, including sea surface temperatures, chlorophyll levels, and other marine parameters. It delivers near-real-time and historical data on key ocean conditions, making it essential for scientific research, weather forecasting, fisheries management, and climate studies. CoastWatch offers a wide range of oceanographic parameters. One of the key features is Sea Surface Temperature (SST) data, which helps track ocean heat changes, marine ecosystem health, and climate patterns such as El Niño and La Niña. Ocean color and chlorophyll concentration data are essential for studying phytoplankton biomass, harmful algal blooms, and overall water quality. Sea surface wind data provides information on wind patterns over oceans, which is crucial for understanding hurricanes, air-sea interactions, and ocean circulation. Additionally, sea level anomalies and altimetry data help detect variations in ocean height, which are useful for monitoring sea level rise, ocean currents, and storm surge risks. One of the unique aspects of the CoastWatch dataset is its near-real-time data availability, with updates occurring multiple times per day. This makes it an essential tool for weather forecasting, disaster response, and operational decision-making in maritime activities. Historical data extends back to the late 1980s, making it possible to analyze long-term ocean trends, including climate change effects on marine environments. The dataset has a size of more than 1000 TB and is organized into various sub-datasets, each focusing on specific oceanographic parameters:​

  • Sea Surface Temperature (SST): Provides global SST measurements, essential for climate monitoring and weather forecasting.​

  • Chlorophyll-a Concentration: Offers data on phytoplankton biomass, aiding in the assessment of marine ecosystem productivity and health.​

  • Sea Surface Winds: Includes wind speed and direction data over the ocean surface, crucial for understanding weather patterns and ocean-atmosphere interactions.​

  • Sea Level Anomalies: Contains information on variations in sea surface height, important for studying ocean circulation and sea level rise.

The National Land Cover Database (NLCD)

The National Land Cover Database (NLCD)

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Open Dataset
Creators: U.S. Geological Survey (USGS)
Publication Date: 2001
Creators: U.S. Geological Survey (USGS)

The National Land Cover Database (NLCD) provides land cover and land use data for the United States, derived from satellite imagery. It includes information on different land cover types and changes over time. The NLCD provides 30-meter spatial resolution raster data, making it one of the most detailed national-scale land cover datasets available. It is derived from Landsat satellite imagery, which enables accurate mapping of vegetation, urban areas, water bodies, and other land cover types. The dataset covers multiple years from 2001 to 2019, allowing researchers to track land cover changes over time. Updates are made periodically to reflect land cover trends, including urban expansion, deforestation, wetland loss, and agricultural shifts. In addition to land cover, impervious surface maps show the extent of human development (roads, buildings, infrastructure). Tree canopy cover maps indicate the percentage of tree cover in different regions, supporting climate and carbon cycle studies. In total, the dataset has a size of more than 1000 GB. The total number of observations is in the billions, as each pixel provides information about land cover, impervious surfaces, or canopy cover.

Polar View

Polar View

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Open Dataset
Creators: European Space Agency (ESA)
Publication Date: 2011
Creators: European Space Agency (ESA)

Polar View provides near-real-time and historical satellite-based monitoring of polar regions and sea ice conditions. The service includes ice mapping, iceberg tracking, and snow cover data, supporting research in climate change, shipping, and Arctic operations. The platform integrates data from various satellites, including ESA’s Copernicus Sentinels, MODIS, and SAR (Synthetic Aperture Radar). The dataset has a size of more than 1000 TB due to decades of satellite data accumulation. Polar View has been continuously operating since 2005. Some of its integrated datasets, like passive microwave sea ice records, extend back to the 1970s. Polar View processes thousands of satellite images per year, generating:

  • 6,800+ satellite scenes annually
  • 4,700+ map products
  • 50,000+ image subsets
  • 15,000+ monitoring product

Polar View is made up of multiple thematic sub-datasets, including:

  • Sea Ice Data: Ice concentration maps, ice edge tracking, and ice charts.
  • Synthetic Aperture Radar (SAR) Imagery: High-resolution satellite radar images used for ice detection.
  • Iceberg Monitoring: Near-real-time iceberg locations for safe navigation.
  • Snow Cover & Melt: Snow extent and melting patterns.
  • River & Lake Ice: Freeze/thaw monitoring for flood risk and transport.
  • Glacier & Ice Sheet Data: Glacier runoff, mass balance, and movement tracking.
  • Optical Mosaics: Large-scale satellite images of polar regions.
Terra Populus

Terra Populus

jona.frroku
Open Dataset
Creators: Terra Populus
Publication Date: NA
Creators: Terra Populus

Terra Populus, also known as IPUMS Terra, is a data repository that provides global population and environmental data, integrating census, survey, and environmental data from around the world. It allows users to explore how demographic and environmental conditions are interrelated over time and across geographic locations. The dataset is organized into three primary structures:​

  1. Microdata: Individual and household-level census records, detailing demographic variables such as age, sex, occupation, education, and migration. ​

  2. Area-Level Data: Aggregated data about specific geographic areas, including population summaries and environmental characteristics. ​

  3. Raster Data: Spatial grids representing environmental variables like land cover, temperature, and precipitation.

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