| Title | Depth, duration and frequency of point rainfall - 60 minute rainfall for 2-year, 5-year, 10 year and 25-year return periods / Hauteur, durée et fréquence des précipitaions ponctuelles - intervalle de 60
minutes et périodes de récurrence de 2, 5, 10 et 25 ans |
| Download | Downloads |
| Author | Canada Surveys and Mapping Branch |
| Source | Hydrological Atlas of Canada 5, 1978, 1 sheet |
| Year | 1978 |
| Publisher | Canada Surveys and Mapping Branch |
| Document | serial |
| Lang. | English; French |
| Maps | 1 map |
| Map Info. | hydrographic, 1:10,000,000 |
| Projection | Lambert Conformal Conic Projection |
| Media | paper; on-line; digital |
| File format | pdf; jpg |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut |
| 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 |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | hydrogeology; environmental geology; environmental geology; hydrology; precipitation; climate |
| Abstract | (unpublished)
The plate contains four maps of 60 minute rainfalls (in millimetres) for a 2 year return period, a 5 year return period, a 10 year return period and a 25 year return period. Each
map has a detailed inset of the Vancouver area. These four maps were not analyzed for the mountainous parts of Canada in British Columbia and the Yukon because of the limited number of stations, the non-representative nature of the valley stations
and the variability of precipitation owing to the orographic effects. From the incomplete data, it is impossible to draw accurate isolines of short duration rainfall amounts on maps of national scale. Point values for all stations west of the Rocky
Mountain range and in the Yukon have been plotted for durations of less than 24 hours. For the Vancouver metropolitan area, recording rain gauges have been in operation for several years. For some of these stations point rainfall data have been
plotted on inset maps. The density of climatological stations varies widely as does populatio |
| GEOSCAN ID | 295277 |
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