{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:19.897187", "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-01_to_2014-Sep-05_8.5_23.0"}, "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": 2014090001302}, "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 01 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 54128.859044413126}, "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", "Niger"]}, "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": 23.0}, "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": 8.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 9.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 24.03], [8.5, 24.25], [9.03, 24.03], [9.25, 23.5], [9.15, 23.25], [9.25, 23.0], [9.03, 22.47], [8.5, 22.25], [7.97, 22.47], [7.75, 23.0], [7.85, 23.25], [7.75, 23.5], [7.97, 24.03]]]]}, "2014-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.25, 22.5], [6.35, 22.75], [6.25, 23.0], [6.47, 23.53], [6.82, 23.68], [6.97, 24.03], [7.5, 24.25], [7.8, 24.13], [7.97, 24.53], [8.5, 24.75], [9.03, 24.53], [9.25, 24.0], [9.15, 23.75], [9.18, 23.68], [9.53, 23.53], [9.75, 23.0], [9.53, 22.47], [9.13, 22.3], [9.18, 22.18], [9.53, 22.03], [9.75, 21.5], [9.53, 20.97], [9.0, 20.75], [8.47, 20.97], [8.32, 21.32], [8.25, 21.35], [8.0, 21.25], [7.75, 21.35], [7.5, 21.25], [7.25, 21.35], [7.18, 21.32], [7.03, 20.97], [6.5, 20.75], [5.97, 20.97], [5.75, 21.5], [5.97, 22.03], [6.32, 22.18], [6.35, 22.25], [6.25, 22.5]]]]}, "2014-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.25, 22.5], [6.35, 22.75], [6.25, 23.0], [6.47, 23.53], [6.82, 23.68], [6.97, 24.03], [7.5, 24.25], [7.8, 24.13], [7.85, 24.25], [7.75, 24.5], [7.97, 25.03], [8.5, 25.25], [8.75, 25.15], [9.0, 25.25], [9.53, 25.03], [9.75, 24.5], [9.53, 23.97], [9.18, 23.82], [9.15, 23.75], [9.18, 23.68], [9.53, 23.53], [9.75, 23.0], [9.53, 22.47], [9.13, 22.3], [9.18, 22.18], [9.53, 22.03], [9.75, 21.5], [9.53, 20.97], [9.0, 20.75], [8.47, 20.97], [8.32, 21.32], [8.25, 21.35], [8.0, 21.25], [7.75, 21.35], [7.5, 21.25], [7.25, 21.35], [7.18, 21.32], [7.03, 20.97], [6.5, 20.75], [5.97, 20.97], [5.75, 21.5], [5.97, 22.03], [6.32, 22.18], [6.35, 22.25], [6.25, 22.5]]]]}, "2014-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.25, 22.5], [6.35, 22.75], [6.25, 23.0], [6.47, 23.53], [6.82, 23.68], [6.97, 24.03], [7.5, 24.25], [7.8, 24.13], [7.85, 24.25], [7.75, 24.5], [7.97, 25.03], [8.5, 25.25], [8.75, 25.15], [9.0, 25.25], [9.53, 25.03], [9.75, 24.5], [9.53, 23.97], [9.18, 23.82], [9.15, 23.75], [9.18, 23.68], [9.53, 23.53], [9.75, 23.0], [9.53, 22.47], [9.13, 22.3], [9.18, 22.18], [9.53, 22.03], [9.75, 21.5], [9.53, 20.97], [9.0, 20.75], [8.47, 20.97], [8.32, 21.32], [8.25, 21.35], [8.0, 21.25], [7.75, 21.35], [7.5, 21.25], [7.25, 21.35], [7.18, 21.32], [7.03, 20.97], [6.5, 20.75], [5.97, 20.97], [5.75, 21.5], [5.97, 22.03], [6.32, 22.18], [6.35, 22.25], [6.25, 22.5]]]]}, "2014-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.97, 23.97], [7.75, 24.5], [7.97, 25.03], [8.5, 25.25], [8.75, 25.15], [9.0, 25.25], [9.53, 25.03], [9.75, 24.5], [9.53, 23.97], [9.0, 23.75], [8.75, 23.85], [8.5, 23.75], [7.97, 23.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.886952996253001}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1478414824403615}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.589574998094974, 33.48143510206893, 33.82379614545249, 33.4751191355046, 31.847160867101934]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.71606990973379, 34.822121160954055, 35.696106669042535, 34.888342516313344, 31.89163676595308]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8577801093905464, 1.9099602563442606, 2.423429237730261, 2.1249799209596922, 2.058994436119349]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.947780392105301, 2.6628854466774783, 2.886952996253001, 2.7929052646853165, 2.0871693902961965]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2781257072462417, 1.4226454439579064, 1.7849738615985227, 1.5061985951550012, 1.3144307666957715]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3113834990977453, 1.8703690244162026, 2.297092374888309, 1.8635321903951774, 1.3416019707595315]}}