{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:25.585242", "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": "2014-Sep-25_to_2014-Oct-01_3.0_26.0"}, "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": 2014090002726}, "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": "September 25 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 52592.55231681542}, "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": ["Algeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 26.0}, "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": 3.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 4.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.5, 26.25], [4.03, 26.03], [4.25, 25.5], [4.03, 24.97], [3.5, 24.75], [2.97, 24.97], [2.75, 25.5], [2.97, 26.03], [3.5, 26.25]]]]}, "2014-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 26.0], [2.47, 26.53], [3.0, 26.75], [3.53, 26.53], [3.68, 26.18], [4.03, 26.03], [4.25, 25.5], [4.15, 25.25], [4.25, 25.0], [4.03, 24.47], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.47, 25.47], [2.25, 26.0]]]]}, "2014-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 26.0], [2.47, 26.53], [2.82, 26.68], [2.97, 27.03], [3.5, 27.25], [4.03, 27.03], [4.25, 26.5], [4.13, 26.2], [4.53, 26.03], [4.75, 25.5], [4.53, 24.97], [4.18, 24.82], [4.03, 24.47], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.47, 25.47], [2.25, 26.0]]]]}, "2014-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.35, 26.75], [1.25, 27.0], [1.47, 27.53], [1.82, 27.68], [1.97, 28.03], [2.5, 28.25], [2.75, 28.15], [3.0, 28.25], [3.53, 28.03], [3.68, 27.68], [4.03, 27.53], [4.25, 27.0], [4.15, 26.75], [4.25, 26.5], [4.13, 26.2], [4.53, 26.03], [4.75, 25.5], [4.53, 24.97], [4.18, 24.82], [4.03, 24.47], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.47, 25.47], [1.25, 26.0], [1.35, 26.25], [1.25, 26.5], [1.35, 26.75]]]]}, "2014-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 26.5], [0.47, 27.03], [1.0, 27.25], [1.25, 27.15], [1.32, 27.18], [1.47, 27.53], [1.82, 27.68], [1.97, 28.03], [2.5, 28.25], [2.75, 28.15], [3.0, 28.25], [3.53, 28.03], [3.68, 27.68], [4.03, 27.53], [4.25, 27.0], [4.15, 26.75], [4.25, 26.5], [4.13, 26.2], [4.53, 26.03], [4.75, 25.5], [4.53, 24.97], [4.18, 24.82], [4.03, 24.47], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.75, 25.35], [1.5, 25.25], [0.97, 25.47], [0.82, 25.82], [0.47, 25.97], [0.25, 26.5]]]]}, "2014-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 26.5], [0.47, 27.03], [1.0, 27.25], [1.25, 27.15], [1.32, 27.18], [1.47, 27.53], [1.82, 27.68], [1.97, 28.03], [2.5, 28.25], [2.75, 28.15], [3.0, 28.25], [3.53, 28.03], [3.68, 27.68], [4.03, 27.53], [4.25, 27.0], [4.15, 26.75], [4.25, 26.5], [4.03, 25.97], [3.68, 25.82], [3.53, 25.47], [3.0, 25.25], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.75, 25.35], [1.5, 25.25], [0.97, 25.47], [0.82, 25.82], [0.47, 25.97], [0.25, 26.5]]]]}, "2014-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 26.5], [0.47, 27.03], [1.0, 27.25], [1.25, 27.15], [1.5, 27.25], [1.75, 27.15], [2.0, 27.25], [2.53, 27.03], [2.75, 26.5], [2.53, 25.97], [2.18, 25.82], [2.03, 25.47], [1.5, 25.25], [0.97, 25.47], [0.82, 25.82], [0.47, 25.97], [0.25, 26.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.662709341260893}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.636156879733891}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.092613424835804, 35.4931995870607, 35.59195578222693, 35.774810825655095, 36.25228470300368, 36.29971830096969, 36.03971587691166]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.092613424835804, 36.61138581405413, 36.91271571138117, 36.91127611669941, 37.80064255743986, 37.32489439920084, 36.48157515975271]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.395428885239653, 2.5157415011221738, 3.123308546090391, 3.3089025195527775, 3.9230462406019613, 4.067196284053928, 3.6498461886915834]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", 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