{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:07.606408", "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": "2018-Sep-17_to_2018-Sep-23_20.5_-3.5"}, "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": 2018090002254}, "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 17 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2018"}, "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": 74058.21571365418}, "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": ["Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": -3.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.5, -2.75], [21.03, -2.97], [21.25, -3.5], [21.03, -4.03], [20.5, -4.25], [19.97, -4.03], [19.75, -3.5], [19.97, -2.97], [20.5, -2.75]]]]}, "2018-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.75, -3.5], [19.97, -2.97], [20.5, -2.75], [20.75, -2.85], [21.0, -2.75], [21.3, -2.87], [21.35, -2.75], [21.25, -2.5], [21.47, -1.97], [22.0, -1.75], [22.53, -1.97], [22.75, -2.5], [22.65, -2.75], [22.75, -3.0], [22.53, -3.53], [22.0, -3.75], [21.7, -3.62], [21.65, -3.75], [21.75, -4.0], [21.53, -4.53], [21.0, -4.75], [20.47, -4.53], [20.32, -4.18], [19.97, -4.03], [19.75, -3.5]]]]}, "2018-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.32, -2.32], [20.35, -2.25], [20.25, -2.0], [20.35, -1.75], [20.25, -1.5], [20.47, -0.97], [21.0, -0.75], [21.25, -0.85], [21.5, -0.75], [21.75, -0.85], [22.0, -0.75], [22.53, -0.97], [22.75, -1.5], [22.54, -2.0], [22.75, -2.5], [22.65, -2.75], [22.75, -3.0], [22.53, -3.53], [22.0, -3.75], [21.75, -3.65], [21.68, -3.68], [21.65, -3.75], [21.75, -4.0], [21.53, -4.53], [21.0, -4.75], [20.47, -4.53], [20.32, -4.18], [20.25, -4.15], [20.0, -4.25], [19.47, -4.03], [19.25, -3.5], [19.47, -2.97], [19.82, -2.82], [19.97, -2.47], [20.32, -2.32]]]]}, "2018-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, -3.5], [19.47, -2.97], [19.82, -2.82], [19.97, -2.47], [20.32, -2.32], [20.35, -2.25], [20.25, -2.0], [20.35, -1.75], [20.25, -1.5], [20.47, -0.97], [21.0, -0.75], [21.25, -0.85], [21.5, -0.75], [21.75, -0.85], [22.0, -0.75], [22.53, -0.97], [22.75, -1.5], [22.63, -1.8], [23.03, -1.97], [23.25, -2.5], [23.03, -3.03], [22.68, -3.18], [22.53, -3.53], [22.13, -3.7], [22.25, -4.0], [22.03, -4.53], [21.68, -4.68], [21.65, -4.75], [21.75, -5.0], [21.53, -5.53], [21.0, -5.75], [20.47, -5.53], [20.25, -5.0], [20.35, -4.75], [20.32, -4.68], [19.97, -4.53], [19.82, -4.18], [19.47, -4.03], [19.25, -3.5]]]]}, "2018-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.46, -4.0], [19.25, -3.5], [19.47, -2.97], [19.82, 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"The daily evolution of mean t2m.", "value": [26.538301061958066, 26.08243442821197, 26.278441885168263, 26.266537012447827, 26.606383899510604, 26.263590763277875, 26.878778733370382]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.538301061958066, 26.405957912996712, 27.04036218125708, 27.02609862080567, 27.606042021887788, 26.839051475794804, 27.20852631726126]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.614823919679793, 1.4476516457919728, 1.6709287176279979, 1.6152698549235267, 1.9071024005119266, 1.5987163166854863, 1.95829966989005]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.614823919679793, 1.5519312067103783, 2.08395139174894, 2.0710941991225695, 2.5565443126861283, 1.9248593507617784, 2.11612145694977]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5277221420089948, 1.5393042031544089, 1.8899270935627566, 1.6761930027036005, 1.92623468984458, 1.6612243096926753, 1.841998357248484]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5277221420089948, 1.7006284522802853, 2.22569869869058, 1.9515242528815768, 2.37214837268821, 2.169433926215235, 2.0356795372380407]}}