{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:28:00.875124", "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": "2021-Oct-22_to_2021-Oct-26_48.0_-13.5"}, "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": 2021100002115}, "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": "October 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 2021"}, "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": 63410.10299983912}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Indian Ocean", "Mozambique Channel"]}, "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": -13.5}, "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": 48.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, -11.5], [46.97, -10.97], [47.5, -10.75], [47.75, -10.85], [48.0, -10.75], [48.25, -10.85], [48.5, -10.75], [49.03, -10.97], [49.25, -11.5], [49.03, -12.03], [48.68, -12.18], [48.53, -12.53], [48.0, -12.75], [47.47, -12.53], [47.32, -12.18], [46.97, -12.03], [46.75, -11.5]]]]}, "2021-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -10.97], [46.0, -10.75], [46.25, -10.85], [46.5, -10.75], [47.0, -10.96], [47.5, -10.75], [47.75, -10.85], [48.0, -10.75], [48.25, -10.85], [48.5, -10.75], [49.03, -10.97], [49.18, -11.32], [49.53, -11.47], [49.75, -12.0], [49.53, -12.53], [49.13, -12.7], [49.25, -13.0], [49.15, -13.25], [49.25, -13.5], [49.03, -14.03], [48.5, -14.25], [48.25, -14.15], [48.0, -14.25], [47.75, -14.15], [47.5, -14.25], [46.97, -14.03], [46.75, -13.5], [46.85, -13.25], [46.82, -13.18], [46.47, -13.03], [46.32, -12.68], [46.25, -12.65], [46.0, -12.75], [45.47, -12.53], [45.25, -12.0], [45.35, -11.75], [45.25, -11.5], [45.47, -10.97]]]]}, "2021-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -10.97], [46.0, -10.75], [46.25, -10.85], [46.5, -10.75], [47.0, -10.96], [47.5, -10.75], [47.75, -10.85], [48.0, -10.75], [48.25, -10.85], [48.5, -10.75], [49.03, -10.97], [49.18, -11.32], [49.53, -11.47], [49.75, -12.0], [49.65, -12.25], [49.75, -12.5], [49.53, -13.03], [49.18, -13.18], [49.15, -13.25], [49.25, -13.5], [49.03, -14.03], [48.5, -14.25], [48.25, -14.15], [48.0, -14.25], [47.75, -14.15], [47.5, -14.25], [46.97, -14.03], [46.75, -13.5], [46.85, -13.25], [46.82, -13.18], [46.47, -13.03], [46.32, -12.68], [46.25, -12.65], [46.0, -12.75], [45.47, -12.53], [45.25, -12.0], [45.35, -11.75], [45.25, -11.5], [45.47, -10.97]]]]}, "2021-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, -10.97], [46.0, -10.75], [46.25, -10.85], [46.5, -10.75], [47.03, -10.97], [47.18, -11.32], [47.25, -11.35], [47.5, -11.25], [47.75, -11.35], [48.0, -11.25], [48.5, -11.46], [49.0, -11.25], [49.53, -11.47], [49.75, -12.0], [49.65, -12.25], [49.75, -12.5], [49.53, -13.03], [49.18, -13.18], [49.15, -13.25], [49.25, -13.5], [49.03, -14.03], [48.5, -14.25], [48.25, -14.15], [48.0, -14.25], [47.75, -14.15], [47.5, -14.25], [46.97, -14.03], [46.75, -13.5], [46.85, -13.25], [46.82, -13.18], [46.47, -13.03], [46.32, -12.68], [46.25, -12.65], [46.0, -12.75], [45.47, -12.53], [45.25, -12.0], [45.35, -11.75], [45.25, -11.5], [45.47, -10.97]]]]}, "2021-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.0, -11.75], [49.53, -11.97], [49.75, -12.5], [49.53, -13.03], [49.0, -13.25], [48.47, -13.03], [48.25, -12.5], [48.47, -11.97], [49.0, -11.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.563852089440843}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8952577885801958}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.09229428708477, 26.496055062263622, 26.645300368873848, 26.614859837180347, 26.539515201121787]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.204325536945476, 27.193771673072092, 27.403218125400883, 27.219764128487043, 26.539515201121787]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7600583337369073, 0.8471086074918504, 0.9808571985577741, 0.8635332332781489, 1.1724936156279568]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9338959448834316, 1.2900320729473265, 1.563852089440843, 1.3584157704023028, 1.1724936156279568]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5243127368313942, 1.615023510912461, 1.823421663167811, 1.591187577762314, 1.4057532364015446]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8382593144960653, 2.0460569539287867, 2.347833009719792, 2.0399848932929974, 1.4057532364015446]}}