{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:14.255677", "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": "2014-Aug-23_to_2014-Aug-27_52.5_-73.5"}, "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": 2014080002802}, "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 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 109259.57397733864}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -73.5}, "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": 52.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "52.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -76.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -71.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.5, -74.75], [44.75, -74.85], [45.0, -74.75], [45.25, -74.85], [45.32, -74.82], [45.47, -74.47], [46.0, -74.25], [46.25, -74.35], [46.5, -74.25], [46.75, -74.35], [47.0, -74.25], [47.25, -74.35], [47.32, -74.32], [47.47, -73.97], [48.0, -73.75], [48.25, -73.85], [48.5, -73.75], [48.75, -73.85], [49.0, -73.75], [49.25, -73.85], [49.5, -73.75], [49.75, -73.85], [50.0, -73.75], [50.25, -73.85], [50.32, -73.82], [50.47, -73.47], [50.82, -73.32], [50.97, -72.97], [51.32, -72.82], [51.47, -72.47], [52.0, -72.25], [52.25, -72.35], [52.32, -72.32], [52.35, -72.25], [52.25, -72.0], [52.47, -71.47], [53.0, -71.25], [53.25, -71.35], [53.5, -71.25], [53.75, -71.35], [54.0, -71.25], [54.25, -71.35], [54.5, -71.25], [54.75, -71.35], [55.0, -71.25], [55.53, -71.47], [55.75, -72.0], [55.65, -72.25], [55.75, -72.5], [55.53, -73.03], [55.18, -73.18], [55.03, -73.53], [54.5, -73.75], [54.25, -73.65], [54.0, -73.75], [53.75, -73.65], [53.68, -73.68], [53.53, -74.03], [53.0, -74.25], [52.75, -74.15], [52.68, -74.18], [52.65, -74.25], [52.75, -74.5], [52.53, -75.03], [52.0, -75.25], [51.75, -75.15], [51.63, -75.2], [51.75, -75.5], [51.53, -76.03], [51.18, -76.18], [51.03, -76.53], [50.5, -76.75], [50.25, -76.65], [50.0, -76.75], [49.75, -76.65], [49.5, -76.75], [49.25, -76.65], [49.0, -76.75], [48.75, -76.65], [48.5, -76.75], [48.25, -76.65], [48.18, -76.68], [48.03, -77.03], [47.5, -77.25], [47.25, -77.15], [47.0, -77.25], [46.75, -77.15], [46.5, -77.25], [46.25, -77.15], [46.0, -77.25], [45.47, -77.03], [45.32, -76.68], [45.25, -76.65], [45.0, -76.75], [44.75, -76.65], [44.5, -76.75], [44.25, -76.65], [44.0, -76.75], [43.47, -76.53], [43.25, -76.0], [43.47, -75.47], [43.82, -75.32], [43.97, -74.97], [44.5, -74.75]]]]}, "2014-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.5, -74.75], [44.75, -74.85], [45.0, -74.75], [45.25, -74.85], [45.32, -74.82], [45.46, -74.5], [45.25, -74.0], [45.47, -73.47], [46.0, -73.25], [46.25, -73.35], [46.5, -73.25], [46.75, -73.35], [46.82, -73.32], [46.97, -72.97], [47.5, -72.75], [47.75, -72.85], [48.0, -72.75], [48.25, -72.85], [48.32, -72.82], [48.47, -72.47], [49.0, -72.25], [49.25, -72.35], [49.5, -72.25], [49.75, -72.35], [50.0, -72.25], [50.25, -72.35], [50.5, -72.25], [50.75, -72.35], [50.82, -72.32], [50.97, -71.97], [51.5, -71.75], [51.75, -71.85], [52.0, -71.75], [52.25, -71.85], [52.32, -71.82], [52.47, -71.47], [53.0, -71.25], [53.25, -71.35], [53.5, -71.25], [53.75, -71.35], [54.0, -71.25], [54.25, -71.35], [54.5, -71.25], [54.75, -71.35], [54.82, -71.32], [54.97, -70.97], [55.5, -70.75], [56.03, -70.97], [56.18, -71.32], [56.25, -71.35], [56.5, -71.25], [56.75, -71.35], [57.0, -71.25], [57.53, -71.47], [57.75, -72.0], [57.65, -72.25], [57.75, -72.5], [57.53, -73.03], [57.18, -73.18], [57.03, -73.53], [56.5, -73.75], [56.25, -73.65], [56.18, -73.68], [56.03, -74.03], [55.5, -74.25], [55.25, -74.15], [55.18, -74.18], [55.03, -74.53], [54.5, -74.75], [54.25, -74.65], [54.0, -74.75], [53.75, -74.65], [53.5, -74.75], [53.25, -74.65], [53.18, -74.68], [53.03, -75.03], [52.5, -75.25], [52.25, -75.15], [52.13, -75.2], [52.25, -75.5], [52.03, -76.03], [51.5, -76.25], [51.25, -76.15], [51.18, -76.18], [51.03, -76.53], [50.5, -76.75], [50.25, -76.65], [50.0, -76.75], [49.75, -76.65], [49.5, -76.75], [49.25, -76.65], [49.0, -76.75], [48.75, -76.65], [48.5, -76.75], [48.25, -76.65], [48.18, -76.68], [48.03, -77.03], [47.5, -77.25], [47.25, -77.15], [47.0, -77.25], [46.75, -77.15], [46.5, -77.25], [46.25, -77.15], [46.0, -77.25], [45.47, -77.03], [45.32, -76.68], [45.25, -76.65], [45.0, -76.75], [44.75, -76.65], [44.5, -76.75], [44.25, -76.65], [44.0, -76.75], [43.47, -76.53], [43.25, -76.0], [43.47, -75.47], [43.82, -75.32], [43.97, -74.97], [44.5, -74.75]]]]}, "2014-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.5, -74.75], [44.75, -74.85], [45.0, -74.75], [45.25, -74.85], [45.32, -74.82], [45.46, -74.5], [45.25, -74.0], [45.47, -73.47], [46.0, -73.25], [46.25, -73.35], [46.5, -73.25], [46.75, -73.35], [46.82, -73.32], [46.97, -72.97], [47.5, -72.75], [47.75, -72.85], [48.0, -72.75], [48.25, -72.85], [48.32, -72.82], [48.47, -72.47], [49.0, -72.25], [49.25, -72.35], [49.5, -72.25], [49.75, -72.35], [50.0, -72.25], [50.25, -72.35], [50.5, -72.25], [50.75, -72.35], [50.82, -72.32], [50.97, -71.97], [51.5, -71.75], [51.75, -71.85], [52.0, -71.75], [52.25, -71.85], [52.32, -71.82], [52.47, -71.47], [53.0, -71.25], [53.25, -71.35], [53.5, -71.25], [53.75, -71.35], [54.0, -71.25], [54.25, -71.35], [54.5, -71.25], [54.75, -71.35], [54.82, -71.32], [54.97, -70.97], [55.5, -70.75], [56.03, -70.97], [56.18, -71.32], [56.25, -71.35], [56.5, -71.25], [56.75, -71.35], [57.0, -71.25], [57.53, -71.47], [57.68, -71.82], [58.03, -71.97], [58.25, -72.5], [58.03, -73.03], [57.5, -73.25], [57.25, -73.15], [57.18, -73.18], [57.03, -73.53], [56.5, -73.75], [56.25, -73.65], [56.18, -73.68], [56.03, -74.03], [55.5, -74.25], [55.25, -74.15], [55.18, -74.18], [55.03, -74.53], [54.5, -74.75], [54.25, -74.65], [54.0, -74.75], [53.75, -74.65], [53.5, -74.75], [53.25, -74.65], [53.18, -74.68], [53.03, -75.03], [52.5, -75.25], [52.25, -75.15], [52.13, -75.2], [52.25, -75.5], [52.03, -76.03], [51.5, -76.25], [51.25, -76.15], [51.18, -76.18], [51.03, -76.53], [50.5, -76.75], [50.25, -76.65], [50.0, -76.75], [49.75, -76.65], [49.5, -76.75], [49.25, -76.65], [49.0, -76.75], [48.75, -76.65], [48.5, -76.75], [48.25, -76.65], [48.18, -76.68], [48.03, -77.03], [47.5, -77.25], [47.25, -77.15], [47.0, -77.25], [46.75, -77.15], [46.5, -77.25], [46.25, -77.15], [46.0, -77.25], [45.47, -77.03], [45.32, -76.68], [45.25, -76.65], [45.0, -76.75], [44.75, -76.65], [44.5, -76.75], [44.25, -76.65], [44.0, -76.75], [43.47, -76.53], [43.25, -76.0], [43.47, -75.47], [43.82, -75.32], [43.97, -74.97], [44.5, -74.75]]]]}, "2014-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -74.53], [45.25, -74.0], [45.47, -73.47], [46.0, -73.25], [46.25, -73.35], [46.5, -73.25], [46.75, -73.35], [46.82, -73.32], [46.97, -72.97], [47.5, -72.75], [47.75, -72.85], [48.0, -72.75], [48.25, -72.85], [48.32, -72.82], [48.47, -72.47], [49.0, -72.25], [49.25, -72.35], [49.5, -72.25], [49.75, -72.35], [50.0, -72.25], [50.25, -72.35], [50.5, -72.25], [50.75, -72.35], [50.82, -72.32], [50.97, -71.97], [51.5, -71.75], [51.75, -71.85], [52.0, -71.75], [52.25, -71.85], [52.32, -71.82], [52.47, -71.47], [53.0, -71.25], [53.25, -71.35], [53.5, -71.25], [53.75, -71.35], [54.0, -71.25], [54.25, -71.35], [54.5, -71.25], [54.75, -71.35], [54.82, -71.32], [54.97, -70.97], [55.5, -70.75], [56.03, -70.97], [56.18, -71.32], [56.25, -71.35], [56.5, -71.25], [56.75, -71.35], [57.0, -71.25], [57.53, -71.47], [57.68, -71.82], [58.03, -71.97], [58.25, -72.5], [58.03, -73.03], [57.5, -73.25], [57.25, -73.15], [57.18, -73.18], [57.03, -73.53], [56.5, -73.75], [56.25, -73.65], [56.18, -73.68], [56.03, -74.03], [55.5, -74.25], [55.25, -74.15], [55.18, -74.18], [55.03, -74.53], [54.5, -74.75], [54.25, -74.65], [54.0, -74.75], [53.75, -74.65], [53.5, -74.75], [53.25, -74.65], [53.18, -74.68], [53.03, -75.03], [52.5, -75.25], [52.25, -75.15], [52.13, -75.2], [52.25, -75.5], [52.03, -76.03], [51.5, -76.25], [51.25, -76.15], [51.18, -76.18], [51.03, -76.53], [50.5, -76.75], [50.25, -76.65], [50.0, -76.75], [49.75, -76.65], [49.5, -76.75], [49.25, -76.65], [49.0, -76.75], [48.75, -76.65], [48.5, -76.75], [47.97, -76.53], [47.82, -76.18], [47.75, -76.15], [47.5, -76.25], [46.97, -76.03], [46.82, -75.68], [46.47, -75.53], [46.25, -75.0], [46.35, -74.75], [46.32, -74.68], [46.25, -74.65], [46.0, -74.75], [45.47, -74.53]]]]}, "2014-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -74.53], [45.25, -74.0], [45.47, -73.47], [46.0, -73.25], [46.25, -73.35], [46.5, -73.25], [46.75, -73.35], [46.82, -73.32], [46.97, -72.97], [47.5, -72.75], [47.75, -72.85], [48.0, -72.75], [48.25, -72.85], [48.32, -72.82], [48.47, -72.47], [49.0, -72.25], [49.25, -72.35], [49.5, -72.25], [49.75, -72.35], [50.0, -72.25], [50.25, -72.35], [50.5, -72.25], [50.75, -72.35], [50.82, -72.32], [50.97, -71.97], [51.5, -71.75], [51.75, -71.85], [52.0, -71.75], [52.25, -71.85], [52.32, -71.82], [52.47, -71.47], [53.0, -71.25], [53.25, -71.35], [53.5, -71.25], [53.75, -71.35], [54.0, -71.25], [54.25, -71.35], [54.5, -71.25], [54.75, -71.35], [54.82, -71.32], [54.97, -70.97], [55.5, -70.75], [56.03, -70.97], [56.18, -71.32], [56.25, -71.35], [56.5, -71.25], [56.75, -71.35], [57.0, -71.25], [57.53, -71.47], [57.68, -71.82], [58.03, -71.97], [58.25, -72.5], [58.03, -73.03], [57.5, -73.25], [57.25, -73.15], [57.18, -73.18], [57.03, -73.53], [56.5, -73.75], [56.25, -73.65], [56.18, -73.68], [56.03, -74.03], [55.5, -74.25], [55.25, -74.15], [55.18, -74.18], [55.03, -74.53], [54.5, -74.75], [54.25, -74.65], [54.0, -74.75], [53.75, -74.65], [53.5, -74.75], [53.25, -74.65], [53.18, -74.68], [53.03, -75.03], [52.5, -75.25], [52.25, -75.15], [52.13, -75.2], [52.25, -75.5], [52.03, -76.03], [51.5, -76.25], [51.25, -76.15], [51.18, -76.18], [51.03, -76.53], [50.5, -76.75], [50.25, -76.65], [50.0, -76.75], [49.75, -76.65], [49.5, -76.75], [49.25, -76.65], [49.0, -76.75], [48.75, -76.65], [48.5, -76.75], [47.97, -76.53], [47.82, -76.18], [47.75, -76.15], [47.5, -76.25], [46.97, -76.03], [46.82, -75.68], [46.47, -75.53], [46.25, -75.0], [46.35, -74.75], [46.32, -74.68], [46.25, -74.65], [46.0, -74.75], [45.47, -74.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.530810438225188}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.5518876036733396}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-50.342908669129685, -47.33022581136751, -48.284801185483786, -46.157185231943544, -45.44600665091485]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-46.59793938503137, -44.01893666455669, -43.94335154238158, -42.068025535433776, -40.329567725405695]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.5023360953883085, 7.957742242467262, 6.883110230242365, 7.851691470124082, 8.286105640449987]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.423250570360693, 9.530810438225188, 7.58201590944185, 8.527010718656896, 9.0038386739582]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5286549216445968, 1.800177868683313, 1.484486589116679, 1.6055919739756266, 1.622087855711227]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.188200910115058, 2.117529285332104, 1.6179481040929682, 1.7893699084358285, 1.8337925500005527]}}