{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:56.092847", "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": "2017-Sep-09_to_2017-Sep-13_6.5_23.5"}, "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": 2017090001567}, "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 09 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 13 2017"}, "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": 59051.76104261579}, "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": 23.5}, "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": 6.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.75}, "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": 22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.5, 24.25], [7.03, 24.03], [7.25, 23.5], [7.03, 22.97], [6.5, 22.75], [5.97, 22.97], [5.75, 23.5], [5.97, 24.03], [6.5, 24.25]]]]}, "2017-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 24.0], [5.85, 24.25], [5.75, 24.5], [5.97, 25.03], [6.5, 25.25], [6.75, 25.15], [7.0, 25.25], [7.53, 25.03], [7.68, 24.68], [7.75, 24.65], [8.0, 24.75], [8.53, 24.53], [8.75, 24.0], [8.53, 23.47], [8.0, 23.25], [7.75, 23.35], [7.68, 23.32], [7.53, 22.97], [7.18, 22.82], [7.03, 22.47], [6.5, 22.25], [5.97, 22.47], [5.75, 23.0], [5.85, 23.25], [5.75, 23.5], [5.85, 23.75], [5.75, 24.0]]], [[[7.97, 24.97], [7.75, 25.5], [7.97, 26.03], [8.5, 26.25], [9.03, 26.03], [9.25, 25.5], [9.03, 24.97], [8.5, 24.75], [7.97, 24.97]]]]}, "2017-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.46, 25.0], [5.25, 25.5], [5.47, 26.03], [6.0, 26.25], [6.5, 26.04], [7.0, 26.25], [7.5, 26.04], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [9.03, 26.03], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.63, 24.3], [8.75, 24.0], [8.53, 23.47], [8.0, 23.25], [7.75, 23.35], [7.68, 23.32], [7.53, 22.97], [7.18, 22.82], [7.03, 22.47], [6.5, 22.25], [5.97, 22.47], [5.82, 22.82], [5.47, 22.97], [5.25, 23.5], [5.46, 24.0], [5.25, 24.5], [5.46, 25.0]]]]}, "2017-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.46, 25.0], [5.25, 25.5], [5.47, 26.03], [6.0, 26.25], [6.5, 26.04], [7.0, 26.25], [7.5, 26.04], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [9.03, 26.03], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.63, 24.3], [8.75, 24.0], [8.53, 23.47], [8.0, 23.25], [7.75, 23.35], [7.68, 23.32], [7.53, 22.97], [7.18, 22.82], [7.03, 22.47], [6.5, 22.25], [5.97, 22.47], [5.82, 22.82], [5.47, 22.97], [5.25, 23.5], [5.46, 24.0], [5.25, 24.5], [5.46, 25.0]]]]}, "2017-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.46, 25.0], [5.25, 25.5], [5.47, 26.03], [6.0, 26.25], [6.5, 26.04], [7.0, 26.25], [7.5, 26.04], [8.0, 26.25], [8.25, 26.15], [8.5, 26.25], [9.03, 26.03], [9.18, 25.68], [9.53, 25.53], [9.75, 25.0], [9.53, 24.47], [9.0, 24.25], [8.75, 24.35], [8.5, 24.25], [8.25, 24.35], [8.0, 24.25], [7.75, 24.35], [7.68, 24.32], [7.65, 24.25], [7.75, 24.0], [7.53, 23.47], [7.18, 23.32], [7.03, 22.97], [6.5, 22.75], [6.25, 22.85], [6.0, 22.75], [5.47, 22.97], [5.25, 23.5], [5.46, 24.0], [5.25, 24.5], [5.46, 25.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.134746878656699}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.314952680159828}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.684343805074832, 31.164805932136915, 31.049990121304745, 31.175278170474485, 31.00311221825274]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.684343805074832, 32.20765692061099, 32.74272536941555, 33.10433224329114, 33.47352301858217]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8300262561666614, 2.1479751833113765, 2.2127585334837767, 2.397759951969187, 2.465648313376194]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8300262561666614, 2.646522955968919, 2.754055430256585, 3.134746878656699, 3.1220579256145697]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2526958064145393, 1.404614937367445, 1.3957379332851838, 1.470202708957753, 1.4972213837875867]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2526958064145393, 1.5974572009797208, 1.6899039037264798, 1.8748504645772115, 1.9761104714650293]}}