{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:59.956054", "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": "2011-Nov-20_to_2011-Nov-27_36.5_-9.5"}, "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": 2011110002380}, "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": "November 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 27 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 69951.31092099725}, "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": ["Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Eastern-Africa"]}, "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": []}, "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": -9.5}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.5, -8.75], [37.03, -8.97], [37.25, -9.5], [37.03, -10.03], [36.5, -10.25], [35.97, -10.03], [35.75, -9.5], [35.97, -8.97], [36.5, -8.75]]]]}, "2011-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.32, -8.82], [35.47, -8.47], [36.0, -8.25], [36.53, -8.47], [36.68, -8.82], [36.75, -8.85], [37.0, -8.75], [37.53, -8.97], [37.75, -9.5], [37.65, -9.75], [37.75, -10.0], [37.65, -10.25], [37.68, -10.32], [38.03, -10.47], [38.25, -11.0], [38.15, -11.25], [38.25, -11.5], [38.03, -12.03], [37.5, -12.25], [37.25, -12.15], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [35.97, -12.03], [35.8, -11.62], [35.5, -11.75], [34.97, -11.53], [34.75, -11.0], [34.88, -10.7], [34.47, -10.53], [34.25, -10.0], [34.47, -9.47], [34.82, -9.32], [34.97, -8.97], [35.32, -8.82]]]]}, "2011-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -10.0], [34.47, -9.47], [34.82, -9.32], [34.97, -8.97], [35.32, -8.82], [35.47, -8.47], [36.0, -8.25], [36.53, -8.47], [36.68, -8.82], [36.75, -8.85], [37.0, -8.75], [37.53, -8.97], [37.68, -9.32], [38.03, -9.47], [38.25, -10.0], [38.04, -10.5], [38.25, -11.0], [38.15, -11.25], [38.25, -11.5], [38.03, -12.03], [37.5, -12.25], [37.25, -12.15], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [35.97, -12.03], [35.8, -11.62], [35.5, -11.75], [34.97, -11.53], [34.75, -11.0], [34.85, -10.75], [34.82, -10.68], [34.47, -10.53], [34.25, -10.0]]]]}, "2011-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -10.0], [34.47, -9.47], [34.82, -9.32], [34.97, -8.97], [35.32, -8.82], [35.47, -8.47], [36.0, -8.25], [36.53, -8.47], [36.68, -8.82], [36.75, -8.85], [37.0, -8.75], [37.53, -8.97], [37.68, -9.32], [38.03, -9.47], [38.25, -10.0], [38.04, -10.5], [38.25, -11.0], [38.15, -11.25], [38.25, -11.5], [38.03, -12.03], [37.5, -12.25], [37.25, -12.15], [37.0, -12.25], [36.75, -12.15], [36.5, -12.25], [35.97, -12.03], [35.8, -11.62], [35.5, -11.75], [34.97, -11.53], [34.75, -11.0], [34.85, -10.75], [34.82, -10.68], [34.47, -10.53], [34.25, -10.0]]]]}, "2011-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.82, -9.32], [35.97, -8.97], [36.5, -8.75], [36.75, -8.85], [37.0, -8.75], [37.53, -8.97], [37.68, -9.32], [38.03, -9.47], [38.25, -10.0], [38.03, -10.53], [37.5, -10.75], [37.25, -10.65], [37.18, -10.68], [37.03, -11.03], [36.5, -11.25], [36.25, -11.15], [36.0, -11.25], [35.75, -11.15], [35.5, -11.25], [34.97, -11.03], [34.75, -10.5], [34.97, -9.97], [35.32, -9.82], [35.47, -9.47], [35.82, -9.32]]]]}, "2011-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.82, -9.32], [35.85, -9.25], [35.75, -9.0], [35.97, -8.47], [36.5, -8.25], [36.75, -8.35], [37.0, -8.25], [37.53, -8.47], [37.75, -9.0], [37.65, -9.25], [37.75, -9.5], [37.65, -9.75], [37.75, -10.0], [37.53, -10.53], [37.18, -10.68], [37.03, -11.03], [36.5, -11.25], [36.25, -11.15], [36.0, -11.25], [35.75, -11.15], [35.5, -11.25], [34.97, -11.03], [34.75, -10.5], [34.97, -9.97], [35.32, -9.82], [35.47, -9.47], [35.82, -9.32]]]]}, "2011-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -9.47], [35.82, -9.32], [35.85, -9.25], [35.75, -9.0], [35.97, -8.47], [36.5, -8.25], [36.75, -8.35], [37.0, -8.25], [37.53, -8.47], [37.75, -9.0], [37.65, -9.25], [37.75, -9.5], [37.53, -10.03], [37.18, -10.18], [37.15, -10.25], [37.25, -10.5], [37.03, -11.03], [36.5, -11.25], [36.25, -11.15], [36.0, -11.25], [35.47, -11.03], [35.25, -10.5], [35.35, -10.25], [35.25, -10.0], [35.47, -9.47]]]]}, "2011-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, -8.47], [36.5, -8.25], [36.75, -8.35], [37.0, -8.25], [37.53, -8.47], [37.75, -9.0], [37.65, -9.25], [37.75, -9.5], [37.53, -10.03], [37.0, -10.25], [36.75, -10.15], [36.5, -10.25], [35.97, -10.03], [35.75, -9.5], [35.85, -9.25], [35.75, -9.0], [35.97, -8.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.0149195905213446}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.174230977157588}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.028567668830306, 28.368240130165418, 28.352008580844995, 28.010339221289087, 27.45957375380135, 27.848467277726854, 27.98714997249931, 28.58657457438244]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.028567668830306, 31.07583139422161, 30.896909609589443, 30.88219367568405, 29.204910150152898, 29.197652065104478, 29.375774794502092, 29.646055227632985]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7440886683605186, 2.204030951740072, 2.412349863282935, 2.07659135596717, 1.9303067889594432, 2.1089355029790795, 2.1679679461800134, 2.1698645149082694]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7440886683605186, 2.514207186219039, 3.0149195905213446, 2.6305029205241226, 2.0720989457176415, 2.5327692076193102, 2.468440050859158, 2.371957533842476]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2522615024061212, 1.3843018096737616, 1.476305615630817, 1.267737966272049, 1.2685446504535278, 1.3728592351363083, 1.3954026408760833, 1.4394350994518235]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2522615024061212, 1.7788459394723792, 2.01261069131129, 1.4399645912984245, 1.3310936926876777, 1.5819034953950113, 1.5773230932620386, 1.5861952943529827]}}