{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:23.629834", "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": "2020-Jun-04_to_2020-Jun-09_52.0_20.5"}, "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": 2020060001426}, "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": "June 04 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 66736.37411140419}, "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": ["Oman", "Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 20.5}, "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": 52.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "52.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 49.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 52.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[52.0, 21.25], [52.53, 21.03], [52.75, 20.5], [52.53, 19.97], [52.0, 19.75], [51.47, 19.97], [51.25, 20.5], [51.47, 21.03], [52.0, 21.25]]]]}, "2020-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.35, 20.75], [49.25, 21.0], [49.35, 21.25], [49.25, 21.5], [49.47, 22.03], [50.0, 22.25], [50.25, 22.15], [50.5, 22.25], [50.75, 22.15], [51.0, 22.25], [51.53, 22.03], [51.75, 21.5], [51.63, 21.2], [51.75, 21.15], [52.0, 21.25], [52.53, 21.03], [52.75, 20.5], [52.65, 20.25], [52.75, 20.0], [52.53, 19.47], [52.0, 19.25], [51.5, 19.46], [51.0, 19.25], [50.75, 19.35], [50.5, 19.25], [50.25, 19.35], [50.0, 19.25], [49.47, 19.47], [49.25, 20.0], [49.35, 20.25], [49.25, 20.5], [49.35, 20.75]]]]}, "2020-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.35, 20.25], [49.25, 20.5], [49.35, 20.75], [49.25, 21.0], [49.35, 21.25], [49.25, 21.5], [49.47, 22.03], [50.0, 22.25], [50.25, 22.15], [50.5, 22.25], [50.75, 22.15], [51.0, 22.25], [51.53, 22.03], [51.75, 21.5], [51.63, 21.2], [51.75, 21.15], [52.0, 21.25], [52.53, 21.03], [52.75, 20.5], [52.65, 20.25], [52.75, 20.0], [52.53, 19.47], [52.18, 19.32], [52.03, 18.97], [51.5, 18.75], [51.25, 18.85], [51.0, 18.75], [50.75, 18.85], [50.5, 18.75], [50.25, 18.85], [50.0, 18.75], [49.47, 18.97], [49.25, 19.5], [49.35, 19.75], [49.25, 20.0], [49.35, 20.25]]]]}, "2020-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.35, 20.25], [49.25, 20.5], [49.35, 20.75], [49.25, 21.0], [49.35, 21.25], [49.25, 21.5], [49.47, 22.03], [50.0, 22.25], [50.25, 22.15], [50.5, 22.25], [50.75, 22.15], [51.0, 22.25], [51.53, 22.03], [51.75, 21.5], [51.63, 21.2], [51.75, 21.15], [52.0, 21.25], [52.53, 21.03], [52.75, 20.5], [52.65, 20.25], [52.75, 20.0], [52.65, 19.75], [52.75, 19.5], [52.65, 19.25], [52.75, 19.0], [52.53, 18.47], [52.0, 18.25], [51.75, 18.35], [51.5, 18.25], [51.25, 18.35], [51.0, 18.25], [50.47, 18.47], [50.32, 18.82], [50.25, 18.85], [50.0, 18.75], [49.47, 18.97], [49.25, 19.5], [49.35, 19.75], [49.25, 20.0], [49.35, 20.25]]]]}, "2020-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[49.47, 18.97], [49.25, 19.5], [49.47, 20.03], [50.0, 20.25], [50.25, 20.15], [50.5, 20.25], [50.75, 20.15], [50.82, 20.18], [50.97, 20.53], [51.5, 20.75], [51.75, 20.65], [52.0, 20.75], [52.53, 20.53], [52.75, 20.0], [52.65, 19.75], [52.75, 19.5], [52.65, 19.25], [52.75, 19.0], [52.53, 18.47], [52.0, 18.25], [51.75, 18.35], [51.5, 18.25], [51.25, 18.35], [51.0, 18.25], [50.47, 18.47], [50.32, 18.82], [50.25, 18.85], [50.0, 18.75], [49.47, 18.97]]]]}, "2020-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.5, 20.25], [51.75, 20.15], [52.0, 20.25], [52.53, 20.03], [52.75, 19.5], [52.65, 19.25], [52.75, 19.0], [52.53, 18.47], [52.0, 18.25], [51.75, 18.35], [51.5, 18.25], [51.25, 18.35], [51.0, 18.25], [50.47, 18.47], [50.25, 19.0], [50.47, 19.53], [50.82, 19.68], [50.97, 20.03], [51.5, 20.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8121076616947107}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.391349392854106}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.97109127338348, 38.06714375552747, 38.25445245249938, 38.25237094469992, 38.08091544806365, 37.835060065912444]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [37.97109127338348, 38.47578045121469, 38.627033852662805, 38.72057851236315, 38.315406647224506, 38.06197245269556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1541697203425656, 2.272762055336451, 2.4509512184806472, 2.4820648887632046, 2.3529564569564796, 2.2038375256383915]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The 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