| Title | Relative sea-level projections for Canada based on the IPCC Fifth Assessment Report and the NAD83v70VG national crustal velocity model |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | James, T S ;
Robin, C; Henton, J A; Craymer, M |
| Source | Geological Survey of Canada, Open File 8764, 2021, 23 pages, https://doi.org/10.4095/327878  Open Access |
| Links | Report - Rapport (pdf)
|
| Links | Fifth Assessment Report of the Intergovernmental Panel on
Climate Change (IPCC AR5)
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| Links | Climate Change 2013: The Physical Science Basis
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| Image |  |
| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to Relative sea-level
projections in Canada and the adjacent mainland United States |
| File format | readme
|
| File format | pdf; rtf; Geotiff |
| Province | Canada; Offshore region; Eastern offshore region; Northern offshore region; Western offshore region; British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia;
Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut; Canada |
| NTS | 1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Area | Canada; United States of America |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | marine geology; geophysics; environmental geology; Nature and Environment; sea level changes; sea level fluctuations; isostatic rebound; crustal uplift; coastal environment; shoreline changes; climate
effects; temperature; geodesy; models; National Crustal Velocity Model NAD83v70VG; Global positioning systems; Climate change; Greenhouse gases; Atmospheric emissions; geographic information system application |
| Illustrations | geoscientific sketch maps; location maps; tables; plots |
| Program | Climate Change Geoscience Coastal Infrastructure |
| Released | 2021 01 26; 2021 02 12 |
| Abstract | This report provides national and regional maps and national geospatial data files (geoTIFFs) of projected relative sea-level change across Canada for 2006 and every decade from 2010 to 2100. It updates
and augments previous reports which included plots and tables of projected relative sea-level change at specified locations where a measurement of vertical land motion had been made by Global Positioning System (GPS). Here, gridded projections are
provided at a resolution of 0.1º in latitude and longitude encompassing all coastal regions of Canada. The relative sea-level projections are based on the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR5) and on the
NAD83v70VG national crustal velocity model. Projections are relative to 1986-2005, and are given for the median value and 5th and 95th percentiles for Representative Concentration Pathway (RCP) scenarios RCP2.6, RCP4.5, and RCP8.5. As well, the
projected sea level at 2100 is given for an enhanced scenario where Antarctica is assumed to provide an additional 65 cm of global sea-level rise to the median projection of RCP8.5. For many purposes, the upper (95th percentile) of the high-emission
RCP8.5 scenario may comprise the appropriate planning level, but if tolerance to the risk of sea-level rise is low, it may be appropriate to consider a larger amount of projected sea-level rise. |
| Summary | (Plain Language Summary, not published)
New sea-level projections are presented in a grid, or map, format for all coastal locations in Canada. The projections are based on the Intergovernmental
Panel on Climate Change (IPCC) Fifth Assessment Report, and extend to the year 2100, relative to a starting time frame of 1986-2005. Projections are given for low, intermediate, and high-emission scenarios of future carbon emission pathways.
Projected relative sea-level change across Canada depends on the amount of projected global sea-level rise and on vertical land motion. Relative sea-level is projected to continue to fall in regions where the land is rising quickly, such as Hudson
Bay and much of the Canadian Arctic Archipelago, and is projected to rise in other parts of Canada, including the Beaufort coastline, British Columbia, and much of Atlantic Canada. |
| GEOSCAN ID | 327878 |
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