{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:21.250994", "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-Mar-20_to_2010-Mar-23_60.5_-79.0"}, "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": 2010030001902}, "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": "March 20 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 23 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": 75035.41671817363}, "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": -79.0}, "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": 60.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 54.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 66.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -80.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -75.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-03-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.97, -78.53], [53.75, -78.0], [53.97, -77.47], [54.5, -77.25], [54.75, -77.35], [55.0, -77.25], [55.25, -77.35], [55.5, -77.25], [55.75, -77.35], [56.0, -77.25], [56.25, -77.35], [56.5, -77.25], [56.75, -77.35], [57.0, -77.25], [57.25, -77.35], [57.5, -77.25], [57.75, -77.35], [58.0, -77.25], [58.25, -77.35], [58.5, -77.25], [58.75, -77.35], [59.0, -77.25], [59.25, -77.35], [59.5, -77.25], [59.75, -77.35], [60.0, -77.25], [60.25, -77.35], [60.5, -77.25], [60.75, -77.35], [61.0, -77.25], [61.25, -77.35], [61.5, -77.25], [61.75, -77.35], [62.0, -77.25], [62.53, -77.47], [62.68, -77.82], [62.75, -77.85], [63.0, -77.75], [63.25, -77.85], [63.5, -77.75], [63.75, -77.85], [64.0, -77.75], [64.25, -77.85], [64.5, -77.75], [64.75, -77.85], [65.0, -77.75], [65.53, -77.97], [65.68, -78.32], [65.75, -78.35], [66.0, -78.25], [66.53, -78.47], [66.68, -78.82], [67.03, -78.97], [67.25, -79.5], [67.03, -80.03], [66.5, -80.25], [66.25, -80.15], [66.0, -80.25], [65.75, -80.15], [65.5, -80.25], [65.25, -80.15], [65.18, -80.18], [65.03, -80.53], [64.5, -80.75], [64.25, -80.65], [64.0, -80.75], [63.75, -80.65], [63.5, -80.75], [63.25, -80.65], [63.0, -80.75], [62.75, -80.65], [62.5, -80.75], [62.25, -80.65], [62.0, -80.75], [61.75, -80.65], [61.5, -80.75], [61.25, -80.65], [61.0, -80.75], [60.75, -80.65], [60.5, -80.75], [60.25, -80.65], [60.0, -80.75], [59.47, -80.53], [59.32, -80.18], [59.25, -80.15], [59.0, -80.25], [58.75, -80.15], [58.5, -80.25], [57.97, -80.03], [57.82, -79.68], [57.75, -79.65], [57.5, -79.75], [57.25, -79.65], [57.0, -79.75], [56.75, -79.65], [56.5, -79.75], [55.97, -79.53], [55.82, -79.18], [55.75, -79.15], [55.5, -79.25], [54.97, -79.03], [54.82, -78.68], [54.75, -78.65], [54.5, -78.75], [53.97, -78.53]]]]}, "2010-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.82, -76.82], [54.85, -76.75], [54.75, -76.5], [54.97, -75.97], [55.5, -75.75], [55.75, -75.85], [55.82, -75.82], [55.97, -75.47], [56.32, -75.32], [56.47, -74.97], [57.0, -74.75], [57.25, -74.85], [57.5, -74.75], [58.03, -74.97], [58.18, -75.32], [58.25, -75.35], [58.5, -75.25], [58.75, -75.35], [59.0, -75.25], [59.25, -75.35], [59.5, -75.25], [59.75, -75.35], [60.0, -75.25], [60.53, -75.47], [60.75, -76.0], [60.65, -76.25], [60.75, -76.5], [60.53, -77.03], [60.18, -77.18], [60.13, -77.3], [60.25, -77.35], [60.5, -77.25], [60.75, -77.35], [61.0, -77.25], [61.25, -77.35], [61.5, -77.25], [61.75, -77.35], [62.0, -77.25], [62.53, -77.47], [62.68, -77.82], [62.75, -77.85], [63.0, -77.75], [63.25, -77.85], [63.5, -77.75], [63.75, -77.85], [64.0, -77.75], [64.25, -77.85], [64.5, -77.75], [64.75, -77.85], [65.0, -77.75], [65.53, -77.97], [65.68, -78.32], [65.75, -78.35], [66.0, -78.25], [66.53, -78.47], [66.68, -78.82], [67.03, -78.97], [67.25, -79.5], [67.03, -80.03], [66.5, -80.25], [66.25, -80.15], [66.0, -80.25], [65.75, -80.15], [65.5, -80.25], [65.25, -80.15], [65.18, -80.18], [65.03, -80.53], [64.5, -80.75], [64.25, -80.65], [64.0, -80.75], [63.75, -80.65], [63.5, -80.75], [63.25, -80.65], [63.0, -80.75], [62.75, -80.65], [62.5, -80.75], [62.25, -80.65], [62.0, -80.75], [61.75, -80.65], [61.5, -80.75], [61.25, -80.65], [61.0, -80.75], [60.75, -80.65], [60.5, -80.75], [60.25, -80.65], [60.0, -80.75], [59.47, -80.53], [59.32, -80.18], [59.25, -80.15], [59.0, -80.25], [58.75, -80.15], [58.5, -80.25], [57.97, -80.03], [57.82, -79.68], [57.75, -79.65], [57.5, -79.75], [57.25, -79.65], [57.0, -79.75], [56.75, -79.65], [56.5, -79.75], [55.97, -79.53], [55.82, -79.18], [55.75, -79.15], [55.5, -79.25], [54.97, -79.03], [54.82, -78.68], [54.75, -78.65], [54.5, -78.75], [53.97, -78.53], [53.75, -78.0], [53.97, -77.47], [54.32, -77.32], [54.47, -76.97], [54.82, -76.82]]]]}, "2010-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.82, -76.82], [54.85, -76.75], [54.75, -76.5], [54.97, -75.97], [55.5, -75.75], [55.75, -75.85], [55.82, -75.82], [55.97, -75.47], [56.32, -75.32], [56.47, -74.97], [57.0, -74.75], [57.25, -74.85], [57.5, -74.75], [58.03, -74.97], [58.18, -75.32], [58.25, -75.35], [58.5, -75.25], [58.75, -75.35], [59.0, -75.25], [59.25, -75.35], [59.5, -75.25], [59.75, -75.35], [60.0, -75.25], [60.53, -75.47], [60.75, -76.0], [60.65, -76.25], [60.75, -76.5], [60.53, -77.03], [60.18, -77.18], [60.13, -77.3], [60.25, -77.35], [60.5, -77.25], [60.75, -77.35], [61.0, -77.25], [61.25, -77.35], [61.5, -77.25], [61.75, -77.35], [62.0, -77.25], [62.53, -77.47], [62.68, -77.82], [62.75, -77.85], [63.0, -77.75], [63.25, -77.85], [63.5, -77.75], [63.75, -77.85], [64.0, -77.75], [64.25, -77.85], [64.5, -77.75], [64.75, -77.85], [65.0, -77.75], [65.53, -77.97], [65.68, -78.32], [65.75, -78.35], [66.0, -78.25], [66.53, -78.47], [66.68, -78.82], [67.03, -78.97], [67.25, -79.5], [67.03, -80.03], [66.5, -80.25], [66.25, -80.15], [66.0, -80.25], [65.75, -80.15], [65.5, -80.25], [65.25, -80.15], [65.18, -80.18], [65.03, -80.53], [64.5, -80.75], [64.25, -80.65], [64.0, -80.75], [63.75, -80.65], [63.5, -80.75], [63.25, -80.65], [63.0, -80.75], [62.75, -80.65], [62.5, -80.75], [62.25, -80.65], [62.0, -80.75], [61.75, -80.65], [61.5, -80.75], [61.25, -80.65], [61.0, -80.75], [60.75, -80.65], [60.5, -80.75], [60.25, -80.65], [60.0, -80.75], [59.47, -80.53], [59.32, -80.18], [59.25, -80.15], [59.0, -80.25], [58.75, -80.15], [58.5, -80.25], [57.97, -80.03], [57.82, -79.68], [57.75, -79.65], [57.5, -79.75], [57.25, -79.65], [57.0, -79.75], [56.75, -79.65], [56.5, -79.75], [55.97, -79.53], [55.82, -79.18], [55.75, -79.15], [55.5, -79.25], [54.97, -79.03], [54.82, -78.68], [54.75, -78.65], [54.5, -78.75], [53.97, -78.53], [53.75, -78.0], [53.97, -77.47], [54.32, -77.32], [54.47, -76.97], [54.82, -76.82]]]]}, "2010-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.75, -76.5], [54.97, -75.97], [55.5, -75.75], [55.75, -75.85], [55.82, -75.82], [55.97, -75.47], [56.32, -75.32], [56.47, -74.97], [57.0, -74.75], [57.25, -74.85], [57.5, -74.75], [58.03, -74.97], [58.18, -75.32], [58.25, -75.35], [58.5, -75.25], [58.75, -75.35], [59.0, -75.25], [59.25, -75.35], [59.5, -75.25], [59.75, -75.35], [60.0, -75.25], [60.53, -75.47], [60.75, -76.0], [60.65, -76.25], [60.75, -76.5], [60.53, -77.03], [60.18, -77.18], [60.03, -77.53], [59.5, -77.75], [59.25, -77.65], [59.0, -77.75], [58.75, -77.65], [58.68, -77.68], [58.53, -78.03], [58.0, -78.25], [57.75, -78.15], [57.5, -78.25], [57.25, -78.15], [57.0, -78.25], [56.75, -78.15], [56.5, -78.25], [56.25, -78.15], [56.0, -78.25], [55.75, -78.15], [55.5, -78.25], [55.25, -78.15], [55.0, -78.25], [54.47, -78.03], [54.25, -77.5], [54.47, -76.97], [54.82, -76.82], [54.85, -76.75], [54.75, -76.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.027997677448298}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.763680195236661}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-43.403771142491536, -41.60752996378605, -42.40381523541731, -40.028686798452355]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-39.86306606424645, -35.07339623496409, -34.668321455489945, -36.87550342739041]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.819366497198586, 8.196703824436945, 7.552998805043533, 6.900327708995203]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.0980435650672, 10.027997677448298, 8.335781713756859, 7.622898789719329]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6460290215724562, 1.6808069984609073, 1.5242711864949627, 1.4912005933921924]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8428442852893725, 1.9154330020856878, 1.771595870996952, 1.6409590815020791]}}