{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:18.397106", "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": "2012-Aug-24_to_2012-Sep-01_37.5_3.0"}, "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": 2012080002758}, "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": "August 24 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 64792.7427404608}, "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": ["Ethiopia", "Kenya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-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": 3.0}, "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": 37.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.5, 3.75], [38.03, 3.53], [38.25, 3.0], [38.03, 2.47], [37.5, 2.25], [36.97, 2.47], [36.75, 3.0], [36.97, 3.53], [37.5, 3.75]]]]}, "2012-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.5, 3.75], [38.03, 3.53], [38.25, 3.0], [38.03, 2.47], [37.5, 2.25], [36.97, 2.47], [36.75, 3.0], [36.97, 3.53], [37.5, 3.75]]]]}, "2012-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.25, 3.5], [36.47, 4.03], [36.82, 4.18], [36.97, 4.53], [37.5, 4.75], [38.03, 4.53], [38.25, 4.0], [38.15, 3.75], [38.18, 3.68], [38.53, 3.53], [38.75, 3.0], [38.65, 2.75], [38.75, 2.5], [38.65, 2.25], [38.75, 2.0], [38.53, 1.47], [38.0, 1.25], [37.47, 1.47], [37.32, 1.82], [36.97, 1.97], [36.75, 2.5], [36.85, 2.75], [36.82, 2.82], [36.47, 2.97], [36.25, 3.5]]]]}, "2012-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.85, 3.25], [35.75, 3.5], [35.85, 3.75], [35.75, 4.0], [35.97, 4.53], [36.5, 4.75], [36.75, 4.65], [36.82, 4.68], [36.97, 5.03], [37.5, 5.25], [37.75, 5.15], [38.0, 5.25], [38.53, 5.03], [38.75, 4.5], [38.65, 4.25], [38.68, 4.18], [39.03, 4.03], [39.25, 3.5], [39.03, 2.97], [38.68, 2.82], [38.65, 2.75], [38.75, 2.5], [38.65, 2.25], [38.75, 2.0], [38.53, 1.47], [38.0, 1.25], [37.47, 1.47], [37.32, 1.82], [37.25, 1.85], [37.0, 1.75], [36.75, 1.85], [36.5, 1.75], [35.97, 1.97], [35.75, 2.5], [35.85, 2.75], [35.75, 3.0], [35.85, 3.25]]]]}, "2012-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 4.5], [35.47, 5.03], [36.0, 5.25], [36.53, 5.03], [36.68, 4.68], [36.75, 4.65], [36.82, 4.68], [36.97, 5.03], [37.5, 5.25], [37.75, 5.15], [38.0, 5.25], [38.53, 5.03], [38.7, 4.62], [39.0, 4.75], [39.53, 4.53], [39.75, 4.0], [39.53, 3.47], [39.18, 3.32], [39.03, 2.97], [38.68, 2.82], [38.65, 2.75], [38.75, 2.5], [38.65, 2.25], [38.75, 2.0], [38.53, 1.47], [38.0, 1.25], [37.47, 1.47], [37.32, 1.82], [37.25, 1.85], [37.0, 1.75], [36.75, 1.85], [36.5, 1.75], [35.97, 1.97], [35.75, 2.5], [35.85, 2.75], [35.75, 3.0], [35.85, 3.25], [35.75, 3.5], [35.85, 3.75], [35.82, 3.82], [35.47, 3.97], [35.25, 4.5]]]]}, "2012-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 4.5], [35.47, 5.03], [36.0, 5.25], [36.53, 5.03], [36.68, 4.68], [36.75, 4.65], [36.82, 4.68], [36.97, 5.03], [37.5, 5.25], [37.75, 5.15], [38.0, 5.25], [38.53, 5.03], [38.7, 4.62], [39.0, 4.75], [39.53, 4.53], [39.75, 4.0], [39.53, 3.47], [39.18, 3.32], [39.03, 2.97], [38.5, 2.75], [38.0, 2.96], [37.68, 2.82], [37.65, 2.75], [37.75, 2.5], [37.53, 1.97], [37.0, 1.75], [36.75, 1.85], [36.5, 1.75], [35.97, 1.97], [35.75, 2.5], [35.85, 2.75], [35.75, 3.0], [35.85, 3.25], [35.75, 3.5], [35.85, 3.75], [35.82, 3.82], [35.47, 3.97], [35.25, 4.5]]]]}, "2012-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 2.47], [35.75, 3.0], [35.97, 3.53], [36.5, 3.75], [37.03, 3.53], [37.25, 3.0], [37.03, 2.47], [36.5, 2.25], [35.97, 2.47]]], [[[38.25, 4.0], [38.47, 4.53], [39.0, 4.75], [39.53, 4.53], [39.75, 4.0], [39.53, 3.47], [39.0, 3.25], [38.47, 3.47], [38.25, 4.0]]], [[[35.25, 4.5], [35.47, 5.03], [36.0, 5.25], [36.53, 5.03], [36.75, 4.5], [36.53, 3.97], [36.0, 3.75], [35.47, 3.97], [35.25, 4.5]]]]}, "2012-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.0, 5.25], [36.53, 5.03], [36.75, 4.5], [36.53, 3.97], [36.0, 3.75], [35.47, 3.97], [35.25, 4.5], [35.47, 5.03], [36.0, 5.25]]]]}, "2012-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.0, 5.25], [36.53, 5.03], [36.75, 4.5], [36.53, 3.97], [36.0, 3.75], [35.47, 3.97], [35.25, 4.5], [35.47, 5.03], [36.0, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.749826886203664}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8460679083865188}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.36589969849439, 30.358642153007224, 28.96166892181151, 28.87103412091767, 28.989123060425584, 28.318807847019798, 27.763332764130553, 30.451989203583366, 30.64195856731152]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.36589969849439, 30.358642153007224, 30.786336816370124, 31.745750961744932, 31.84710633837574, 31.18283237614463, 30.76881860312534, 30.451989203583366, 30.64195856731152]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3953600550545957, 1.377080560496779, 1.5773043185507163, 1.9411179776641707, 2.2054282367176206, 1.65093342425223, 1.3016421624060968, 1.00722643062187, 1.1576240789206054]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3953600550545957, 1.377080560496779, 1.6981365348952977, 2.5890323214730415, 2.749826886203664, 1.9687720067144596, 1.4904859497434018, 1.00722643062187, 1.1576240789206054]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5216262065281774, 1.4399823172209267, 1.5624493506172783, 1.8858860388540557, 2.147931512503323, 1.6146906303645718, 1.3525372166146363, 1.161323832500741, 1.307015153139976]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5216262065281774, 1.4399823172209267, 1.725794030897627, 2.465482938703233, 2.8377752455874226, 2.333443080968891, 1.5438795814395414, 1.161323832500741, 1.307015153139976]}}