{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:32.543022", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2010-Apr-13_to_2010-Apr-16_278.0_47.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2010040001664}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "April 13 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 61474.54384988612}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America", "N.E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 47.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 278.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 275.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.75, 46.5], [-83.53, 47.03], [-83.0, 47.25], [-82.75, 47.15], [-82.68, 47.18], [-82.65, 47.25], [-82.75, 47.5], [-82.53, 48.03], [-82.0, 48.25], [-81.47, 48.03], [-81.25, 47.5], [-81.35, 47.25], [-81.25, 47.0], [-81.47, 46.47], [-81.82, 46.32], [-81.97, 45.97], [-82.5, 45.75], [-82.75, 45.85], [-83.0, 45.75], [-83.53, 45.97], [-83.75, 46.5]]], [[[-79.97, 47.53], [-79.75, 47.0], [-79.97, 46.47], [-80.5, 46.25], [-81.03, 46.47], [-81.25, 47.0], [-81.03, 47.53], [-80.5, 47.75], [-79.97, 47.53]]]]}, "2010-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.5, 49.25], [-82.97, 49.03], [-82.82, 48.68], [-82.75, 48.65], [-82.5, 48.75], [-82.25, 48.65], [-82.0, 48.75], [-81.75, 48.65], [-81.5, 48.75], [-81.25, 48.65], [-81.18, 48.68], [-81.15, 48.75], [-81.18, 48.82], [-81.53, 48.97], [-81.75, 49.5], [-81.65, 49.75], [-81.75, 50.0], [-81.53, 50.53], [-81.18, 50.68], [-81.03, 51.03], [-80.5, 51.25], [-80.25, 51.15], [-80.0, 51.25], [-79.47, 51.03], [-79.25, 50.5], [-79.35, 50.25], [-79.32, 50.18], [-78.97, 50.03], [-78.75, 49.5], [-78.85, 49.25], [-78.75, 49.0], [-78.97, 48.47], [-79.32, 48.32], [-79.47, 47.97], [-80.0, 47.75], [-80.25, 47.85], [-80.32, 47.82], [-80.35, 47.75], [-80.32, 47.68], [-79.97, 47.53], [-79.75, 47.0], [-79.97, 46.47], [-80.5, 46.25], [-81.03, 46.47], [-81.18, 46.82], [-81.25, 46.85], [-81.32, 46.82], [-81.47, 46.47], [-81.82, 46.32], [-81.97, 45.97], [-82.5, 45.75], [-82.75, 45.85], [-83.0, 45.75], [-83.53, 45.97], [-83.75, 46.5], [-83.53, 47.03], [-83.18, 47.18], [-83.12, 47.3], [-83.25, 47.35], [-83.5, 47.25], [-83.75, 47.35], [-84.0, 47.25], [-84.53, 47.47], [-84.75, 48.0], [-84.53, 48.53], [-84.18, 48.68], [-84.03, 49.03], [-83.5, 49.25]]]]}, "2010-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.5, 49.25], [-82.97, 49.03], [-82.82, 48.68], [-82.75, 48.65], [-82.5, 48.75], [-82.25, 48.65], [-82.0, 48.75], [-81.75, 48.65], [-81.5, 48.75], [-81.25, 48.65], [-81.18, 48.68], [-81.15, 48.75], [-81.18, 48.82], [-81.53, 48.97], [-81.75, 49.5], [-81.65, 49.75], [-81.75, 50.0], [-81.53, 50.53], [-81.18, 50.68], [-81.03, 51.03], [-80.5, 51.25], [-80.25, 51.15], [-80.0, 51.25], [-79.47, 51.03], [-79.25, 50.5], [-79.35, 50.25], [-79.32, 50.18], [-78.97, 50.03], [-78.75, 49.5], [-78.85, 49.25], [-78.75, 49.0], [-78.97, 48.47], [-79.32, 48.32], [-79.47, 47.97], [-80.0, 47.75], [-80.25, 47.85], [-80.32, 47.82], [-80.35, 47.75], [-80.32, 47.68], [-79.97, 47.53], [-79.75, 47.0], [-79.97, 46.47], [-80.5, 46.25], [-81.03, 46.47], [-81.18, 46.82], [-81.25, 46.85], [-81.32, 46.82], [-81.47, 46.47], [-81.82, 46.32], [-81.97, 45.97], [-82.5, 45.75], [-82.75, 45.85], [-83.0, 45.75], [-83.53, 45.97], [-83.75, 46.5], [-83.53, 47.03], [-83.18, 47.18], [-83.12, 47.3], [-83.25, 47.35], [-83.5, 47.25], [-83.75, 47.35], [-84.0, 47.25], [-84.53, 47.47], [-84.75, 48.0], [-84.53, 48.53], [-84.18, 48.68], [-84.03, 49.03], [-83.5, 49.25]]]]}, "2010-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.5, 49.25], [-82.97, 49.03], [-82.82, 48.68], [-82.75, 48.65], [-82.5, 48.75], [-82.25, 48.65], [-82.0, 48.75], [-81.75, 48.65], [-81.5, 48.75], [-81.25, 48.65], [-81.18, 48.68], [-81.15, 48.75], [-81.18, 48.82], [-81.53, 48.97], [-81.75, 49.5], [-81.65, 49.75], [-81.75, 50.0], [-81.53, 50.53], [-81.18, 50.68], [-81.03, 51.03], [-80.5, 51.25], [-80.25, 51.15], [-80.0, 51.25], [-79.47, 51.03], [-79.25, 50.5], [-79.35, 50.25], [-79.32, 50.18], [-78.97, 50.03], [-78.75, 49.5], [-78.85, 49.25], [-78.75, 49.0], [-78.97, 48.47], [-79.32, 48.32], [-79.47, 47.97], [-80.0, 47.75], [-80.25, 47.85], [-80.32, 47.82], [-80.35, 47.75], [-80.32, 47.68], [-79.97, 47.53], [-79.75, 47.0], [-79.97, 46.47], [-80.5, 46.25], [-81.03, 46.47], [-81.18, 46.82], [-81.25, 46.85], [-81.32, 46.82], [-81.47, 46.47], [-81.82, 46.32], [-81.97, 45.97], [-82.5, 45.75], [-82.75, 45.85], [-83.0, 45.75], [-83.53, 45.97], [-83.75, 46.5], [-83.53, 47.03], [-83.18, 47.18], [-83.12, 47.3], [-83.25, 47.35], [-83.5, 47.25], [-83.75, 47.35], [-84.0, 47.25], [-84.53, 47.47], [-84.75, 48.0], [-84.53, 48.53], [-84.18, 48.68], [-84.03, 49.03], [-83.5, 49.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.691742952411062}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.3135373860593935}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.683198335466045, 6.997803886295287, 9.154324888318172, 8.849960999634902]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.750867493882822, 7.927067013226463, 12.028256828912674, 10.714019803071551]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.061898063895842, 6.5088179775727815, 8.227206110101925, 7.579861290864064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.674333101363686, 8.055463622581783, 10.691742952411062, 9.760176624129826]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.342345288347468, 1.4008624713416056, 1.771692326269765, 1.6442752834506105]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4227635337734303, 1.5538836302563894, 2.3762795891365003, 1.9504516307555055]}}