SEALEVELS.INFO is the property of Scientinel, a Copenhagen-based climate consultancy company. We have developed this website in an attempt to bring climate knowledge to the public, in a pragmatic and interactive fashion. The focus of our work is firmly on assisting everyone to better adapt to the impacts of climate change. We provide guidelines on the appropriate ways of using sea-level projections from our website (see Disclaimer). We also welcome your feedback, so feel free to get in touch.
Our work makes use of a number of different data sources. Aggregation and fusion of data was made possible by the Open Source Geospatial Foundation and in particular GDAL. There are over 62 million projected data tiles, kindly hosted and maintained in New York, USA, by Network Solutions. These are in turn presently served by Google Maps and OpenStreetMap. We are grateful for the support given by the United Nations Environment Programme.
Our work relies on surface elevation data, made available by NASA, the SRTM Plus (V3) available globally at 3-arc-seconds (about 90-meters) pixel spacing. We have also made use of the ICE-5G model (Peltier 2004) to account for glacial isostatic adjustments, in line with IPCC AR5 sea-level projections. All development, population and infrastructure data has been provided by Google, and is updated frequently.
Current sea-level projections in SEALEVELS.INFO follow all the 4 different scenarios used by IPCC. In particular, we have made use of data released by WG1 (Chapter 13), and unrestricted datasets from CMIP5. We also make use of present-day atmospheric concentrations trends of CO2, made available by NOAA's Manua Loa Observatory to automatically select which RCP scenario drives our Sea-Level Engine.
The purpose of this sea-level portal is to provide both adaptation professionals and the public with a visual projection of future sea levels around the world. Data aggregation and display have been fused to provide the most accurate and relevant likely future sea-level scenarios. Our maps may be used as a likely impact screening tool that makes use of internationally tested and consistent datasets and analyses, to prioritise adaptation strategies.
Our sea-level maps display different scales of low-lying areas that are likely to be below future relative mean sea-levels. Our work does not include any consideration for precise location, erosion, local subsidence, hydrological modelling or any flood defences - nor do we account for any pluvial or fluvial processes. Satellite altimetry and other remotely-sensed data in particular, despite extensive testing over the years by a number of different organisations, can and will be prone to errors in some locations (particularly over inland water bodies at different scales), and are currently limited to latitudes from 60°N to 60°S. We do not provide sea-level mapping outside of these boundaries. All data and maps in SEALEVELS.INFO are provided “as is” without any warranty to their performance, accuracy or suitability for any particular purpose. All risks associated with any results, decisions and/or performance of the data made available on our website are borne entirely by the user.
All information displayed is provided free of charge at all scales available on this website. Data extracted from SEALEVELS.INFO and/or Scientinel (including any and all possible derivatives) CANNOT BE USED FOR COMMERCIAL PURPOSES without a license, and remain the intellectual property of Scientinel. All the work(s) made available to you on our website(s) are copyrighted and must be credited accordingly [© Scientinel - http://sealevels.info/]