{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:32.147375", "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": "2020-Sep-16_to_2020-Sep-18_36.0_9.0"}, "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": 2020090001848}, "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 16 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 18 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 51876.66645956566}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": 9.0}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 10.03], [35.5, 10.25], [35.75, 10.15], [35.82, 10.18], [35.97, 10.53], [36.5, 10.75], [36.75, 10.65], [36.82, 10.68], [36.97, 11.03], [37.5, 11.25], [38.03, 11.03], [38.25, 10.5], [38.03, 9.97], [37.68, 9.82], [37.65, 9.75], [37.68, 9.68], [37.75, 9.65], [38.0, 9.75], [38.53, 9.53], [38.75, 9.0], [38.65, 8.75], [38.75, 8.5], [38.65, 8.25], [38.75, 8.0], [38.53, 7.47], [38.0, 7.25], [37.47, 7.47], [37.25, 8.0], [37.03, 7.47], [36.5, 7.25], [35.97, 7.47], [35.82, 7.82], [35.47, 7.97], [35.32, 8.32], [34.97, 8.47], [34.75, 9.0], [34.85, 9.25], [34.75, 9.5], [34.97, 10.03]], [[37.35, 8.25], [37.32, 8.32], [37.25, 8.35], [37.13, 8.3], [37.25, 8.0], [37.35, 8.25]]]]}, "2020-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 10.03], [35.5, 10.25], [35.75, 10.15], [35.82, 10.18], [35.97, 10.53], [36.5, 10.75], [36.75, 10.65], [36.82, 10.68], [36.97, 11.03], [37.5, 11.25], [38.03, 11.03], [38.25, 10.5], [38.03, 9.97], [37.68, 9.82], [37.65, 9.75], [37.68, 9.68], [37.75, 9.65], [38.0, 9.75], [38.53, 9.53], [38.75, 9.0], [38.65, 8.75], [38.75, 8.5], [38.65, 8.25], [38.75, 8.0], [38.53, 7.47], [38.0, 7.25], [37.47, 7.47], [37.25, 8.0], [37.03, 7.47], [36.5, 7.25], [35.97, 7.47], [35.82, 7.82], [35.47, 7.97], [35.32, 8.32], [34.97, 8.47], [34.75, 9.0], [34.85, 9.25], [34.75, 9.5], [34.97, 10.03]], [[37.35, 8.25], [37.32, 8.32], [37.25, 8.35], [37.13, 8.3], [37.25, 8.0], [37.35, 8.25]]]]}, "2020-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.97, 10.03], [35.5, 10.25], [35.75, 10.15], [35.82, 10.18], [35.97, 10.53], [36.5, 10.75], [36.75, 10.65], [36.82, 10.68], [36.97, 11.03], [37.5, 11.25], [38.03, 11.03], [38.25, 10.5], [38.03, 9.97], [37.68, 9.82], [37.65, 9.75], [37.68, 9.68], [37.75, 9.65], [38.0, 9.75], [38.53, 9.53], [38.75, 9.0], [38.65, 8.75], [38.75, 8.5], [38.65, 8.25], [38.75, 8.0], [38.53, 7.47], [38.0, 7.25], [37.47, 7.47], [37.25, 8.0], [37.03, 7.47], [36.5, 7.25], [35.97, 7.47], [35.82, 7.82], [35.47, 7.97], [35.32, 8.32], [34.97, 8.47], [34.75, 9.0], [34.85, 9.25], [34.75, 9.5], [34.97, 10.03]], [[37.35, 8.25], [37.32, 8.32], [37.25, 8.35], [37.13, 8.3], [37.25, 8.0], [37.35, 8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.0045157915745904}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2184262090952305}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.738069341555672, 18.86596156814477, 19.18837859058459]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.47903187786568, 23.700787888794537, 23.957065916559884]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.045344206173705, 1.1565491070817502, 1.453385314030236]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.519010479424992, 1.7695184877626957, 2.0045157915745904]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4975644504526793, 1.6127298305744862, 2.0382396176814392]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2946276202644156, 2.1779621414265167, 2.506592925136148]}}