{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:24.059277", "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": "2023-Aug-27_to_2023-Aug-29_242.0_48.5"}, "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": 2023080002205}, "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 27 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 2023"}, "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": 63771.086944681956}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.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": 48.5}, "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": 242.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "242.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 241.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 246.25}, "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": 50.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.25, 48.5], [-119.03, 49.03], [-118.5, 49.25], [-118.25, 49.15], [-118.0, 49.25], [-117.7, 49.13], [-117.65, 49.25], [-117.75, 49.5], [-117.53, 50.03], [-117.0, 50.25], [-116.47, 50.03], [-116.32, 49.68], [-116.25, 49.65], [-116.18, 49.68], [-116.15, 49.75], [-116.25, 50.0], [-116.03, 50.53], [-115.5, 50.75], [-114.97, 50.53], [-114.75, 50.0], [-114.85, 49.75], [-114.82, 49.68], [-114.75, 49.65], [-114.5, 49.75], [-113.97, 49.53], [-113.75, 49.0], [-113.85, 48.75], [-113.75, 48.5], [-113.85, 48.25], [-113.75, 48.0], [-113.96, 47.5], [-113.82, 47.18], [-113.47, 47.03], [-113.25, 46.5], [-113.47, 45.97], [-114.0, 45.75], [-114.53, 45.97], [-114.68, 46.32], [-114.75, 46.35], [-115.0, 46.25], [-115.53, 46.47], [-115.68, 46.82], [-115.75, 46.85], [-116.0, 46.75], [-116.25, 46.85], [-116.5, 46.75], [-117.03, 46.97], [-117.18, 47.32], [-117.25, 47.35], [-117.5, 47.25], [-117.75, 47.35], [-118.0, 47.25], [-118.53, 47.47], [-118.68, 47.82], [-119.03, 47.97], [-119.25, 48.5]]]]}, "2023-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.25, 48.5], [-119.03, 49.03], [-118.5, 49.25], [-118.25, 49.15], [-118.0, 49.25], [-117.7, 49.13], [-117.65, 49.25], [-117.75, 49.5], [-117.53, 50.03], [-117.0, 50.25], [-116.47, 50.03], [-116.32, 49.68], [-116.25, 49.65], [-116.18, 49.68], [-116.15, 49.75], [-116.25, 50.0], [-116.03, 50.53], [-115.5, 50.75], [-114.97, 50.53], [-114.75, 50.0], [-114.85, 49.75], [-114.82, 49.68], [-114.75, 49.65], [-114.5, 49.75], [-113.97, 49.53], [-113.75, 49.0], [-113.85, 48.75], [-113.75, 48.5], [-113.85, 48.25], [-113.75, 48.0], [-113.96, 47.5], [-113.82, 47.18], [-113.47, 47.03], [-113.25, 46.5], [-113.47, 45.97], [-114.0, 45.75], [-114.53, 45.97], [-114.68, 46.32], [-114.75, 46.35], [-115.0, 46.25], [-115.53, 46.47], [-115.68, 46.82], [-115.75, 46.85], [-116.0, 46.75], [-116.25, 46.85], [-116.5, 46.75], [-117.03, 46.97], [-117.18, 47.32], [-117.25, 47.35], [-117.5, 47.25], [-117.75, 47.35], [-118.0, 47.25], [-118.53, 47.47], [-118.68, 47.82], [-119.03, 47.97], [-119.25, 48.5]]]]}, "2023-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-119.25, 48.5], [-119.03, 49.03], [-118.5, 49.25], [-118.25, 49.15], [-118.0, 49.25], [-117.7, 49.13], [-117.65, 49.25], [-117.75, 49.5], [-117.53, 50.03], [-117.0, 50.25], [-116.47, 50.03], [-116.32, 49.68], [-116.25, 49.65], [-116.18, 49.68], [-116.15, 49.75], [-116.25, 50.0], [-116.03, 50.53], [-115.5, 50.75], [-114.97, 50.53], [-114.75, 50.0], [-114.85, 49.75], [-114.82, 49.68], [-114.75, 49.65], [-114.5, 49.75], [-113.97, 49.53], [-113.75, 49.0], [-113.85, 48.75], [-113.75, 48.5], [-113.85, 48.25], [-113.75, 48.0], [-113.96, 47.5], [-113.82, 47.18], [-113.47, 47.03], [-113.25, 46.5], [-113.47, 45.97], [-114.0, 45.75], [-114.53, 45.97], [-114.68, 46.32], [-114.75, 46.35], [-115.0, 46.25], [-115.53, 46.47], [-115.68, 46.82], [-115.75, 46.85], [-116.0, 46.75], [-116.25, 46.85], [-116.5, 46.75], [-117.03, 46.97], [-117.18, 47.32], [-117.25, 47.35], [-117.5, 47.25], [-117.75, 47.35], [-118.0, 47.25], [-118.53, 47.47], [-118.68, 47.82], [-119.03, 47.97], [-119.25, 48.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.478917717997945}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.309581834090486}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.495405803555002, 21.914544141047713, 21.840710958836326]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.549902590701492, 24.928230862695216, 24.747020311956987]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.849319251552873, 5.475309549500573, 5.604116701218011]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.689019893023556, 6.259615136147659, 6.478917717997945]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.441529602143261, 1.5879764644014525, 1.6062772325814165]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.682589948133631, 1.8911019122729116, 1.925344632877273]}}