{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:43.149450", "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-Apr-09_to_2017-Apr-12_30.5_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": 2017040001656}, "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": "April 09 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 12 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 82553.94890214995}, "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": ["Egypt", "Sudan"]}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "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": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.47, 22.97], [29.25, 23.5], [29.47, 24.03], [30.0, 24.25], [30.25, 24.15], [30.32, 24.18], [30.47, 24.53], [31.0, 24.75], [31.53, 24.53], [31.75, 24.0], [31.65, 23.75], [31.75, 23.5], [31.53, 22.97], [31.0, 22.75], [30.75, 22.85], [30.5, 22.75], [30.25, 22.85], [30.0, 22.75], [29.47, 22.97]]]]}, "2017-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.32, 23.68], [29.47, 24.03], [29.82, 24.18], [29.96, 24.5], [29.75, 25.0], [29.97, 25.53], [30.5, 25.75], [30.75, 25.65], [31.0, 25.75], [31.25, 25.65], [31.5, 25.75], [32.03, 25.53], [32.25, 25.0], [32.03, 24.47], [31.68, 24.32], [31.65, 24.25], [31.75, 24.0], [31.65, 23.75], [31.75, 23.5], [31.65, 23.25], [31.75, 23.0], [31.53, 22.47], [31.18, 22.32], [31.03, 21.97], [30.68, 21.82], [30.53, 21.47], [30.18, 21.32], [30.03, 20.97], [29.5, 20.75], [29.25, 20.85], [29.0, 20.75], [28.75, 20.85], [28.5, 20.75], [28.25, 20.85], [28.0, 20.75], [27.47, 20.97], [27.25, 21.5], [27.35, 21.75], [27.25, 22.0], [27.47, 22.53]]]]}, "2017-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.32, 23.68], [29.47, 24.03], [29.82, 24.18], [29.96, 24.5], [29.75, 25.0], [29.97, 25.53], [30.5, 25.75], [30.75, 25.65], [31.0, 25.75], [31.25, 25.65], [31.5, 25.75], [32.03, 25.53], [32.25, 25.0], [32.03, 24.47], [31.68, 24.32], [31.65, 24.25], [31.75, 24.0], [31.65, 23.75], [31.75, 23.5], [31.65, 23.25], [31.75, 23.0], [31.53, 22.47], [31.18, 22.32], [31.03, 21.97], [30.68, 21.82], [30.53, 21.47], [30.18, 21.32], [30.03, 20.97], [29.5, 20.75], [29.25, 20.85], [29.0, 20.75], [28.75, 20.85], [28.5, 20.75], [28.25, 20.85], [28.0, 20.75], [27.47, 20.97], [27.25, 21.5], [27.35, 21.75], [27.25, 22.0], [27.47, 22.53]]]]}, "2017-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.32, 23.68], [29.47, 24.03], [29.82, 24.18], [29.96, 24.5], [29.75, 25.0], [29.97, 25.53], [30.5, 25.75], [30.75, 25.65], [31.0, 25.75], [31.25, 25.65], [31.5, 25.75], [32.03, 25.53], [32.25, 25.0], [32.03, 24.47], [31.68, 24.32], [31.65, 24.25], [31.75, 24.0], [31.65, 23.75], [31.75, 23.5], [31.65, 23.25], [31.75, 23.0], [31.53, 22.47], [31.18, 22.32], [31.03, 21.97], [30.68, 21.82], [30.53, 21.47], [30.18, 21.32], [30.03, 20.97], [29.5, 20.75], [29.25, 20.85], [29.0, 20.75], [28.75, 20.85], [28.5, 20.75], [28.25, 20.85], [28.0, 20.75], [27.47, 20.97], [27.25, 21.5], [27.35, 21.75], [27.25, 22.0], [27.47, 22.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.718224665514811}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.763830707000708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.275853223271838, 30.1409299340919, 30.747045898196177, 31.73444138602366]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.573118962936974, 31.47597732474486, 32.13283903638188, 33.767830285603054]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.858585439883953, 5.187567425229033, 5.69462764853362, 6.534158463393506]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.189687985006287, 5.760788736069742, 6.99576163685208, 7.718224665514811]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4862839422207013, 1.5936725056180465, 1.7327397983950872, 1.9447146493212977]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5427854438214232, 1.700863463937062, 2.0810086259630496, 2.2586638362495406]}}