{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:32.383141", "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": "2015-Dec-28_to_2015-Dec-31_40.5_16.5"}, "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": 2015120002424}, "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": "December 28 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 31 2015"}, "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": 97879.72492335974}, "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": ["Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "N.Eastern-Africa", "Sahara"]}, "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": ["Red Sea"]}, "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": 16.5}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.35, 17.25], [39.25, 17.5], [39.35, 17.75], [39.25, 18.0], [39.35, 18.25], [39.25, 18.5], [39.47, 19.03], [40.0, 19.25], [40.53, 19.03], [40.68, 18.68], [40.75, 18.65], [41.0, 18.75], [41.53, 18.53], [41.75, 18.0], [41.65, 17.75], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.53, 17.03], [42.68, 16.68], [43.03, 16.53], [43.25, 16.0], [43.15, 15.75], [43.25, 15.5], [43.15, 15.25], [43.25, 15.0], [43.15, 14.75], [43.25, 14.5], [43.03, 13.97], [42.5, 13.75], [42.0, 13.96], [41.5, 13.75], [40.97, 13.97], [40.82, 14.32], [40.47, 14.47], [40.32, 14.82], [39.97, 14.97], [39.75, 15.5], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.35, 17.25]]]]}, "2015-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.35, 17.25], [39.25, 17.5], [39.35, 17.75], [39.25, 18.0], [39.35, 18.25], [39.25, 18.5], [39.47, 19.03], [40.0, 19.25], [40.53, 19.03], [40.68, 18.68], [40.75, 18.65], [41.0, 18.75], [41.53, 18.53], [41.75, 18.0], [41.65, 17.75], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.25, 17.15], [42.5, 17.25], [43.03, 17.03], [43.25, 16.5], [43.15, 16.25], [43.25, 16.0], [43.15, 15.75], [43.25, 15.5], [43.15, 15.25], [43.25, 15.0], [43.15, 14.75], [43.25, 14.5], [43.03, 13.97], [42.5, 13.75], [42.0, 13.96], [41.5, 13.75], [40.97, 13.97], [40.82, 14.32], [40.47, 14.47], [40.32, 14.82], [39.97, 14.97], [39.75, 15.5], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.35, 17.25]]]]}, "2015-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.35, 17.25], [39.25, 17.5], [39.35, 17.75], [39.25, 18.0], [39.35, 18.25], [39.25, 18.5], [39.47, 19.03], [40.0, 19.25], [40.53, 19.03], [40.68, 18.68], [40.75, 18.65], [41.0, 18.75], [41.53, 18.53], [41.75, 18.0], [41.65, 17.75], [41.68, 17.68], [42.03, 17.53], [42.18, 17.18], [42.25, 17.15], [42.5, 17.25], [43.03, 17.03], [43.25, 16.5], [43.15, 16.25], [43.25, 16.0], [43.15, 15.75], [43.25, 15.5], [43.15, 15.25], [43.25, 15.0], [43.15, 14.75], [43.25, 14.5], [43.03, 13.97], [42.5, 13.75], [42.0, 13.96], [41.5, 13.75], [40.97, 13.97], [40.82, 14.32], [40.47, 14.47], [40.32, 14.82], [39.97, 14.97], [39.75, 15.5], [39.85, 15.75], [39.82, 15.82], [39.47, 15.97], [39.25, 16.5], [39.35, 16.75], [39.25, 17.0], [39.35, 17.25]]]]}, "2015-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.97, 17.03], [42.5, 17.25], [43.03, 17.03], [43.25, 16.5], [43.04, 16.0], [43.25, 15.5], [43.03, 14.97], [42.5, 14.75], [41.97, 14.97], [41.75, 15.5], [41.96, 16.0], [41.75, 16.5], [41.97, 17.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3322163071896398}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9318018498963141}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.886229049467886, 27.006202889131714, 26.82886076281011, 26.417726866986868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.41638319308413, 27.65910277925343, 27.376973387890246, 26.606834619501853]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9117948282554185, 1.0284516966704949, 0.8717485819673002, 0.6480706452053937]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2125979293145406, 1.3322163071896398, 1.121816574774698, 0.6522524034429011]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7767004747236144, 2.1394697224086245, 1.8393751005974677, 1.4545001346529574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.358454425432611, 2.6196045496056017, 2.261818736275377, 1.501374756520752]}}