{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:18.708677", "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": "2012-Aug-25_to_2012-Aug-27_282.0_60.5"}, "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": 2012080002822}, "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": "August 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 72753.29760796906}, "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": ["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": ["Hudson Bay"]}, "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": 60.5}, "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": 282.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 58.0], [-80.53, 58.53], [-80.18, 58.68], [-80.15, 58.75], [-80.25, 59.0], [-80.15, 59.25], [-80.25, 59.5], [-80.15, 59.75], [-80.25, 60.0], [-80.15, 60.25], [-80.25, 60.5], [-80.03, 61.03], [-79.62, 61.2], [-79.75, 61.5], [-79.53, 62.03], [-79.0, 62.25], [-78.75, 62.15], [-78.5, 62.25], [-78.25, 62.15], [-78.0, 62.25], [-77.47, 62.03], [-77.32, 61.68], [-76.97, 61.53], [-76.75, 61.0], [-76.85, 60.75], [-76.75, 60.5], [-76.85, 60.25], [-76.82, 60.18], [-76.47, 60.03], [-76.32, 59.68], [-75.97, 59.53], [-75.75, 59.0], [-75.97, 58.47], [-76.37, 58.3], [-76.25, 58.0], [-76.35, 57.75], [-76.25, 57.5], [-76.47, 56.97], [-77.0, 56.75], [-77.25, 56.85], [-77.5, 56.75], [-77.75, 56.85], [-78.0, 56.75], [-78.25, 56.85], [-78.5, 56.75], [-78.8, 56.88], [-78.97, 56.47], [-79.5, 56.25], [-80.03, 56.47], [-80.25, 57.0], [-80.15, 57.25], [-80.18, 57.32], [-80.53, 57.47], [-80.75, 58.0]]]]}, "2012-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 58.0], [-80.53, 58.53], [-80.18, 58.68], [-80.15, 58.75], [-80.25, 59.0], [-80.15, 59.25], [-80.25, 59.5], [-80.15, 59.75], [-80.25, 60.0], [-80.15, 60.25], [-80.25, 60.5], [-80.03, 61.03], [-79.62, 61.2], [-79.75, 61.5], [-79.53, 62.03], [-79.0, 62.25], [-78.75, 62.15], [-78.5, 62.25], [-78.25, 62.15], [-78.0, 62.25], [-77.47, 62.03], [-77.32, 61.68], [-76.97, 61.53], [-76.75, 61.0], [-76.85, 60.75], [-76.75, 60.5], [-76.85, 60.25], [-76.82, 60.18], [-76.47, 60.03], [-76.32, 59.68], [-75.97, 59.53], [-75.75, 59.0], [-75.97, 58.47], [-76.37, 58.3], [-76.25, 58.0], [-76.35, 57.75], [-76.25, 57.5], [-76.47, 56.97], [-77.0, 56.75], [-77.25, 56.85], [-77.5, 56.75], [-77.75, 56.85], [-78.0, 56.75], [-78.25, 56.85], [-78.5, 56.75], [-78.8, 56.88], [-78.97, 56.47], [-79.5, 56.25], [-80.03, 56.47], [-80.25, 57.0], [-80.15, 57.25], [-80.18, 57.32], [-80.53, 57.47], [-80.75, 58.0]]]]}, "2012-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 58.0], [-80.53, 58.53], [-80.18, 58.68], [-80.15, 58.75], [-80.25, 59.0], [-80.15, 59.25], [-80.25, 59.5], [-80.15, 59.75], [-80.25, 60.0], [-80.15, 60.25], [-80.25, 60.5], [-80.03, 61.03], [-79.62, 61.2], [-79.75, 61.5], [-79.53, 62.03], [-79.0, 62.25], [-78.75, 62.15], [-78.5, 62.25], [-78.25, 62.15], [-78.0, 62.25], [-77.47, 62.03], [-77.32, 61.68], [-76.97, 61.53], [-76.75, 61.0], [-76.85, 60.75], [-76.75, 60.5], [-76.85, 60.25], [-76.82, 60.18], [-76.47, 60.03], [-76.32, 59.68], [-75.97, 59.53], [-75.75, 59.0], [-75.97, 58.47], [-76.37, 58.3], [-76.25, 58.0], [-76.35, 57.75], [-76.25, 57.5], [-76.47, 56.97], [-77.0, 56.75], [-77.25, 56.85], [-77.5, 56.75], [-77.75, 56.85], [-78.0, 56.75], [-78.25, 56.85], [-78.5, 56.75], [-78.8, 56.88], [-78.97, 56.47], [-79.5, 56.25], [-80.03, 56.47], [-80.25, 57.0], [-80.15, 57.25], [-80.18, 57.32], [-80.53, 57.47], [-80.75, 58.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.72528844433964}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.139535268447885}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.914050921264902, 13.60538181914319, 11.306689390323868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.921719765705063, 15.924218379714432, 13.416361023623438]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.721409685636519, 5.457941068629844, 3.239255051077296]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.509967589605594, 6.72528844433964, 4.770849738061884]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.718960585409789, 2.5171667534962587, 1.4996587235436933]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.968481285034945, 3.175182972479568, 1.8962553307829004]}}