{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:32.745195", "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-Aug-23_to_2010-Aug-26_237.5_38.0"}, "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": 2010080002655}, "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 23 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 26 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": 66548.63385089516}, "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": ["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": 38.0}, "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": 237.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "237.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 235.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 240.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.0, 39.25], [-121.47, 39.03], [-121.25, 38.5], [-121.47, 37.97], [-121.82, 37.82], [-121.97, 37.47], [-122.5, 37.25], [-123.03, 37.47], [-123.25, 38.0], [-123.03, 38.53], [-122.68, 38.68], [-122.53, 39.03], [-122.0, 39.25]]]]}, "2010-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-124.75, 42.0], [-124.53, 42.53], [-124.0, 42.75], [-123.75, 42.65], [-123.5, 42.75], [-122.97, 42.53], [-122.75, 42.0], [-122.85, 41.75], [-122.82, 41.68], [-122.47, 41.53], [-122.32, 41.18], [-121.97, 41.03], [-121.8, 40.63], [-121.5, 40.75], [-120.97, 40.53], [-120.82, 40.18], [-120.75, 40.15], [-120.5, 40.25], [-119.97, 40.03], [-119.75, 39.5], [-119.85, 39.25], [-119.75, 39.0], [-119.85, 38.75], [-119.82, 38.68], [-119.75, 38.65], [-119.5, 38.75], [-118.97, 38.53], [-118.75, 38.0], [-118.97, 37.47], [-119.5, 37.25], [-119.75, 37.35], [-120.0, 37.25], [-120.53, 37.47], [-120.68, 37.82], [-121.03, 37.97], [-121.18, 38.32], [-121.25, 38.35], [-121.32, 38.32], [-121.47, 37.97], [-121.82, 37.82], [-121.97, 37.47], [-122.5, 37.25], [-123.03, 37.47], [-123.25, 38.0], [-123.03, 38.53], [-122.68, 38.68], [-122.65, 38.75], [-122.68, 38.82], [-122.75, 38.85], [-123.0, 38.75], [-123.25, 38.85], [-123.5, 38.75], [-124.03, 38.97], [-124.25, 39.5], [-124.15, 39.75], [-124.25, 40.0], [-124.15, 40.25], [-124.25, 40.5], [-124.15, 40.75], [-124.25, 41.0], [-124.15, 41.25], [-124.18, 41.32], [-124.53, 41.47], [-124.75, 42.0]]]]}, "2010-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-124.75, 42.0], [-124.53, 42.53], [-124.0, 42.75], [-123.75, 42.65], [-123.5, 42.75], [-122.97, 42.53], [-122.75, 42.0], [-122.85, 41.75], [-122.82, 41.68], [-122.47, 41.53], [-122.32, 41.18], [-121.97, 41.03], [-121.8, 40.63], [-121.5, 40.75], [-120.97, 40.53], [-120.82, 40.18], [-120.75, 40.15], [-120.5, 40.25], [-119.97, 40.03], [-119.75, 39.5], [-119.85, 39.25], [-119.75, 39.0], [-119.85, 38.75], [-119.82, 38.68], [-119.75, 38.65], [-119.5, 38.75], [-118.97, 38.53], [-118.75, 38.0], [-118.97, 37.47], [-119.5, 37.25], [-119.75, 37.35], [-120.0, 37.25], [-120.53, 37.47], [-120.68, 37.82], [-121.03, 37.97], [-121.18, 38.32], [-121.25, 38.35], [-121.32, 38.32], [-121.47, 37.97], [-121.82, 37.82], [-121.97, 37.47], [-122.5, 37.25], [-123.03, 37.47], [-123.25, 38.0], [-123.03, 38.53], [-122.68, 38.68], [-122.65, 38.75], [-122.68, 38.82], [-122.75, 38.85], [-123.0, 38.75], [-123.25, 38.85], [-123.5, 38.75], [-124.03, 38.97], [-124.25, 39.5], [-124.15, 39.75], [-124.25, 40.0], [-124.15, 40.25], [-124.25, 40.5], [-124.15, 40.75], [-124.25, 41.0], [-124.15, 41.25], [-124.18, 41.32], [-124.53, 41.47], [-124.75, 42.0]]]]}, "2010-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-124.75, 42.0], [-124.53, 42.53], [-124.0, 42.75], [-123.75, 42.65], [-123.5, 42.75], [-122.97, 42.53], [-122.75, 42.0], [-122.85, 41.75], [-122.82, 41.68], [-122.47, 41.53], [-122.32, 41.18], [-121.97, 41.03], [-121.8, 40.63], [-121.5, 40.75], [-120.97, 40.53], [-120.82, 40.18], [-120.75, 40.15], [-120.5, 40.25], [-119.97, 40.03], [-119.75, 39.5], [-119.85, 39.25], [-119.75, 39.0], [-119.85, 38.75], [-119.82, 38.68], [-119.75, 38.65], [-119.5, 38.75], [-118.97, 38.53], [-118.75, 38.0], [-118.97, 37.47], [-119.5, 37.25], [-119.75, 37.35], [-120.0, 37.25], [-120.53, 37.47], [-120.68, 37.82], [-121.03, 37.97], [-121.18, 38.32], [-121.25, 38.35], [-121.5, 38.25], [-121.75, 38.35], [-122.0, 38.25], [-122.53, 38.47], [-122.68, 38.82], [-122.75, 38.85], [-123.0, 38.75], [-123.25, 38.85], [-123.5, 38.75], [-124.03, 38.97], [-124.25, 39.5], [-124.15, 39.75], [-124.25, 40.0], [-124.15, 40.25], [-124.25, 40.5], [-124.15, 40.75], [-124.25, 41.0], [-124.15, 41.25], [-124.18, 41.32], [-124.53, 41.47], [-124.75, 42.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.25407335295813}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.630711208720176}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.07624541162602, 25.367715422499657, 26.955053003241744, 26.11072399709832]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.214427390112235, 32.137625760767605, 34.81943793389638, 33.002527865679895]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.1677620419888513, 3.9629906665808625, 5.501052706227873, 4.525038577302789]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.504925262236611, 5.701693771566681, 8.25407335295813, 5.770855137072658]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5540003918275536, 1.7565488556146192, 2.333065674895082, 1.847056247486915]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6329470723643953, 2.8949094730943146, 3.1554144628454917, 2.496620877478532]}}