Water Level Lakes 1992-present (vector), global, per overpass - version 2
The Water Level is defined as the height, in meters above the geoid, of the reflecting surface of continental water bodies. It is observed by space radar altimeters that measure the time it takes for radar pulses to reach the ground targets, directly below the spacecraft (nadir position), and return. Hence, only water bodies located along the satellite's ground tracks can be monitored, with a quality of measurement that not only depends of the size of the water body, but also on the reflecting targets in its surroundings such as topography or vegetation. Water Level is computed as time series over lakes and at the intersections of rivers and the satellite ground tracks.
The data at global scale are available in near real time in vector format and with the temporal extent from 1992 to present.
Simple
Identification info
- Date (Creation)
- 2018-02-12
- Date (Publication)
- 2018-02-12
- Edition
-
2
- Edition date
- 2023-09-25T00:00:00
- Citation identifier
- clms_v_4326__wl-lakes-daily-global_p_1992-now_v2_r00
- Citation identifier
- clms_global_wl_lakes_v2_daily
Identifier
- Other citation details
-
https://land.copernicus.eu/en/products/water-bodies/water-level-lakes-near-real-time-v2.0
- Purpose
-
This product is first designed to fit the requirements of the Global component of Land Service of the Copernicus programme. It can be also useful for all applications related to the environment monitoring.
- Credit
-
Water Level products were generated by the Global Land Service of Copernicus, the Earth Observation programme of the European Commission. The research leading to the current version of the product has received funding from various European Commission Research and Technical Development programs. The product is based on POSEIDON data from jason3 missions (copyright EUMETSAT, CNES, NOAA and NASA).
- Point of contact
-
Organisation Individual Electronic mail address Website Role European Commission
Owner Copernicus Land Monitoring Service
Custodian European Commission's Joint Research Centre
Publisher Copernicus Land Monitoring Service helpdesk
Point of contact
- Spatial representation type
- Vector
- Topic category
-
- Environment
- Elevation
- Inland waters
Extent
))
Extent
Temporal extent
- Time period
- time series time series 1992-09-01
- Maintenance and update frequency
- As needed
- mmi:updateScope
- Series
Resource format
- Title
-
NetCDF
- Alternate title
-
Network Common Data Form
- Date
- Edition
-
4.2.1.1
- Theme
-
-
biogeophysical
-
- Place
-
-
Lakes
-
- Temporal
-
-
Time series
-
Resource constraints
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
Resource constraints
- Use constraints
- Other restrictions
- Other constraints
-
The Copernicus component is governed by Regulation (EU) No 2021/696 of the European Parliament and of the Council of 28 April 2021 establishing the Union Space Programme and the European Union Agency for the Space Programme and repealing Regulations (EU) No 912/2010, (EU) No 1285/2013 and (EU) No 377/2014 and Decision No 541/2014/EU. Within the Copernicus component, a portfolio of land monitoring activities has been delegated by the European Union to the European Environment Agency (EEA) and the DG Joint Research Centre of the European Commission.
The Copernicus land monitoring products and services are made available on a principle of full, open and free access, as established by the Commission Delegated Regulation (EU) No 1159/2013 of 12 July 2013.
Free, full and open access to the products and services of the Copernicus Land Monitoring Service is made on the conditions that:
1. When distributing or communicating Copernicus Land Monitoring Service products and services (data, software scripts, web services, user and methodological documentation and similar) to the public, users shall inform the public of the source of these products and services.
2. Where the Copernicus Land Monitoring Service products and services have been adapted or modified by the user, the user shall clearly state this.
3. Users shall make sure not to convey the impression to the public that the user's activities are officially endorsed by the European Union.
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distribution format
-
-
GeoJSON
-
- Fees
-
Free for HTTP download and EUMETCast; cost of medium by DvD or tape
- Ordering instructions
-
Products can be downloaded online via HTTP or can be received through EUMETCast satellite reception in Europe, Africa and Latin-America.
- Units of distribution
-
Per product
- OnLine resource
-
OGC WMTS
- OnLine resource
-
Copernicus Data Space Ecosystem download services
- Units of distribution
-
Per product
- OnLine resource
-
Copernicus Browser
Data quality info
- Hierarchy level
- Dataset
Report
Result
- Title
-
Validation results conform CEOS LPV guidelines
- Date (Publication)
- 2010-12-01
- Explanation
-
https://land.copernicus.eu/en/products/water-bodies/water-level-lakes-near-real-time-v2.0
- Pass
- 1
Report
Result
- Date (Publication)
- 2010-12-08
- Explanation
-
This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
- Pass
- true
Report
Result
- Title
- INSPIRE Data Specification on Hydrography - Guidelines
- Date (Publication)
- 2010-04-26
- Explanation
-
See the referenced specification
- Pass
- true
Resource lineage
- Statement
-
Altimeter measurements are extracted over each satellite ground track with both a land/water mask and predefined editing criteria on the values of the altimeter range and associated propagation corrections. From these computed along-track water levels, outliers are rejected by Standard Deviation test and an average water level is computed. A final selection step ensures consistency of the most recently computed water level value with the existing water level time series. The input data are the 25 years Top measured by the POSEIDON sensor.
- Hierarchy level
- Dataset
Spatial representation info
- Number of dimensions
- 2
- Cell geometry
- Area
- Transformation parameter availability
- false
- Check point availability
- true
- Check point description
-
Upperleft corner tiepoint
- Pixel orientation code
-
Reference System Information
Reference System Information
- Code
- EPSG:4326
- Maintenance and update frequency
- As needed
Metadata
- Metadata identifier
- b4e3720f-19a7-4b04-9de1-786eb52807ac
- Language
- English
- Character encoding
- UTF8
- Contact
-
Organisation Individual Electronic mail address Website Role Copernicus Land Monitoring Service
Point of contact
Type of resource
- Resource type
- Dataset
- Date info (Creation)
- 2024-12-17T06:50:27.49537Z
- Date info (Revision)
- 2026-08-26T11:27:22.446575Z
Metadata standard
- Title
-
ISO 19115/19139
- Edition
-
1.0
Overviews
Spatial extent
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