- What is CREODIAS?
- Computing & Cloud
- Data & Processing
- Pricing Plans
- Fight with COVID-19
- Examples of usage
- Utility of CREODIAS data
- CREODIAS for land and agriculture monitoring
- Solutions for atmospheric analysis
- Example of tool usage
- Processing EO Data and Serving www services
- Processing and Storing EO
- Embedding OGC WMS Services into Your website
- GPU Use Case
- Using the EO Browser
- EO Data Finder API Manual
- Use of SNAP and QGIS on a CREODIAS Virtual Machine
- Use of WMS Configurator
- DNS as a Service - user documentation
- Use of Sinergise Sentinel Hub on the CREODIAS EO Data Hub
- Load Balancer as a Service
- Jupyter Hub
- Use of CREODIAS Finder for ordering data
- ESRI ArcGIS on CREODIAS
- Use of CEMS data through CREODIAS
- Searching, processing and analysis of Sentinel-5P data on CREODIAS
- ASAR data available on CREODIAS
- Public Reporting Dashboards
- Sentinel Hub Documentation
- Integration Guides
- OGC API
- Custom Processing Scripts
- Legal Matters
- Partner Services
- About Us
Example of usage
SOLUTIONS FOR ATMOSPHERIC ANALYSIS
The air is transparent for human eye, nevertheless satellite sensors can see much more because they are constructed to register wavelengths inaccessible to our eyesight. Specific components of the air have a unique response in the available range of spectrum. That is why the size of cloud particles, PM2.5, CO2, SO, or O3 can all be measured.
CREODIAS provides access to atmospheric parameters and characteristics and offers tools that help to transform relevant information into key knowledge for environmental management. In particular, the platform gives access to the data from a flagship Copernicus satellite for atmospheric applications, Sentinel-5P, as well as Copernicus Atmosphere Monitoring Service (CAMS) products, and provides cloud computing environment for processing this data.
PICTURE OF ATMOSPHERE
Satellite observations give us an opportunity to see the Earth’s atmosphere from a truly unique perspective. CREODIAS provides data in various spatial and spectral ranges which are used for plenty of air applications. Satellite data in meteorology, climatology and environmental protection can be used for:
- pollution monitoring
- solar balance
- surface fluxes
- cloud cover
Life on our planet is possible thanks to a specific characteristic of our atmosphere. Each land cover element is determinate with geographical location and unique climate for that region. In order to properly understand vegetation, agriculture, pedosphere, and surface waters, it is crucial to have a knowledge about meteorological and climate factors.
When satellite data is used to analyse the surface of the Earth’s elements, an atmosphere effect has to be eliminated. That is why, an atmospheric correction is one of the first steps in the satellite optical data processing.
CREODIAS platform gives access to both processing levels:
- L1 – before atmospheric correction
- L2 – after atmospheric correction
However, a huge part of remotely sensing research and analysis is dedicated not only to Earth surface but also the atmosphere itself. Earth Observation systems ‘take pictures’ in a specific range of electromagnetic spectrum. In order to see air elements, bands outside atmospheric windows are used. Each atmospheric component has a unique spectral key. Knowledge about its absorbance, transmittance and reflectance characteristic allows to create models and calculate the atmospheric component amount in specific time and space.
CLOUDS AND SHADOW MASKING
Atmosphere effect is removed from optical data in order to acquire a real reflectance of the Earth’s surface elements. Only that kind of data can be used in quantitative analysis, time comparison and statements of surface. Therefore, all visible and infrared data is atmospherically corrected and effect of clouds and their shadows are removed.
TROPOspheric Monitoring Instrument (TROPOMI), which is carried by Sentinel-5P, provides product dedicated to cloud properties, e.g.:
- cloud base height and pressure
- top height and pressure
- effective radiometric cloud fraction
- optical thickness
This data presents cloud type and properties which are indicators of processes inside of them. That kind of knowledge can be used in forecasting storms and hails in order to provide alerts for farmers and agriculture administration, or in providing key information for aviation.
The picture below shows the Sentinel-5P Top Pressure product from 1st March 2020 when the storm a had strong impact on central regions of France . The epicenter of the low-pressure system is visible through blue-green clouds centered over France.