![]() ![]() It shows you a time-series graph of the maximum (noon) UV index for each day of the year at that location. You are presented with a map of the world, from which you click on a location. Presented as three-dimensional graphs, with the x-axis being day of the year, the y-axis being time of the day, and the UV index for each day and time being shown as a colour. The UV index measured by Brewer Spectrophotometers in the Canadian network for the year to date. Presented as time series graphs showing three types of information. The maximum daily UV index measured by Brewer Spectrophotometers in the Canadian network for the year to date. Year-to-Date Daily Maximum UV Index Graphs.The UV index measured today by Brewer Spectrophotometers in the Canadian network. When the sky is clear, it is possible to calculate what the UV index will be at any place on the earth, any day of the year, and any time of the day, given a few assumptions. ![]() The page is updated when ozonesonde flights take place, which is generally every Wednesday.Ĭanada maintains a network of Brewer Ozone Spectrophotometers, which measure the UV index several times per hour during daylight hours.ĭuring nighttime hours, including the Polar Night, the UV index is always zero. Presented as three-dimensional time-series graphs with the third dimension shown by colour. The ozone layer as measured by ozonesonde instruments suspended from balloons for the year to date. The ozone layer as measured by Brewer Spectrophotometers for the year to date. Maps of the ozone layer over Canada, from measurements taken today. Maps of Canada showing the ozone layer as it was yesterday and the day before. There are two maps of Canada, one showing the absolute thickness of the ozone layer, and the other showing the thickness compared to normal for this day of the year. The forecast of the ozone layer over Canada today. One method for producing a probabilistic forecast is through the analog ensemble approach (Delle Monache et al., 2011).This page shows the most recent measurements of the ozone layer and UV index, as measured by Brewer Ozone Spectrophotometers in the Canadian network. This effort is also known as the Atmosphere to Electrons to Grid (A2E2G) project. Understanding this uncertainty is part of a larger project focused on building a platform that combines efforts in weather forecasting, aerodynamic and economic modeling to create maximum value of a wind plant to better provide more » services to the grid. Probabilistic day-ahead wind forecasting is useful for anticipating how a wind farm could potentially participate in the day-ahead market by providing upper and lower bounds for expected power generation, thus informing grid operators of its uncertainty. Wind resource assessment and wind power forecasting are used in research and industry to anticipate future power output at scales ranging from individual wind turbines to entire wind farms. Use of advanced model probing tools such as process analysis and sensitivity analysis is demonstrated by diagnosing model sensitivity to boundary conditions and to weekday-weekend emission changes. The forecasts were obtained by driving the CMAQ model with four meteorological forecasts and seven emission scenarios: a control run, to the ocean, (2) reduced vertical mixing over the ocean, (3) attenuation of sunlight by coastal stratus, (4) the influence of surface albedo on photochemistry, and (5) the effects of observation nudging on wind fields. Twenty-eight ozone forecasts were generated over the Lower Fraser Valley, British Columbia, Canada, for the 5-day period 11-15 August 2004, and compared with 1-hour averaged measurements of ozone concentrations at five stations. ![]() This study investigates whether probabilistic ozone forecasts from an ensemble can be made with skill i.e., high verification resolution and reliability.
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