{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:37.375088", "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": "2022-Feb-01_to_2022-Feb-03_47.0_4.0"}, "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": 2022020001257}, "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": "February 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2022"}, "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": 55538.096046627805}, "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": ["Somalia"]}, "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": ["Indian Ocean"]}, "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": 4.0}, "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": 47.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[44.0, 4.25], [44.25, 4.15], [44.5, 4.25], [44.75, 4.15], [44.82, 4.18], [44.97, 4.53], [45.5, 4.75], [45.75, 4.65], [46.0, 4.75], [46.25, 4.65], [46.5, 4.75], [46.75, 4.65], [46.82, 4.68], [46.97, 5.03], [47.5, 5.25], [48.03, 5.03], [48.25, 4.5], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.18, 2.32], [46.03, 1.97], [45.5, 1.75], [45.25, 1.85], [45.0, 1.75], [44.47, 1.97], [44.32, 2.32], [44.25, 2.35], [44.0, 2.25], [43.47, 2.47], [43.25, 3.0], [43.35, 3.25], [43.25, 3.5], [43.47, 4.03], [44.0, 4.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.25, 3.5], [43.47, 4.03], [44.0, 4.25], [44.25, 4.15], [44.5, 4.25], [44.75, 4.15], [44.82, 4.18], [44.97, 4.53], [45.5, 4.75], [45.75, 4.65], [46.0, 4.75], [46.25, 4.65], [46.5, 4.75], [46.75, 4.65], [46.82, 4.68], [46.97, 5.03], [47.5, 5.25], [48.03, 5.03], [48.25, 4.5], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.18, 2.32], [46.03, 1.97], [45.5, 1.75], [45.25, 1.85], [45.0, 1.75], [44.47, 1.97], [44.32, 2.32], [44.25, 2.35], [44.0, 2.25], [43.47, 2.47], [43.25, 3.0], [43.35, 3.25], [43.25, 3.5]]]]}, "2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.25, 3.5], [43.47, 4.03], [44.0, 4.25], [44.25, 4.15], [44.5, 4.25], [44.75, 4.15], [44.82, 4.18], [44.97, 4.53], [45.5, 4.75], [45.75, 4.65], [46.0, 4.75], [46.25, 4.65], [46.5, 4.75], [46.75, 4.65], [46.82, 4.68], [46.97, 5.03], [47.5, 5.25], [48.03, 5.03], [48.25, 4.5], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.18, 2.32], [46.03, 1.97], [45.5, 1.75], [45.25, 1.85], [45.0, 1.75], [44.47, 1.97], [44.32, 2.32], [44.25, 2.35], [44.0, 2.25], [43.47, 2.47], [43.25, 3.0], [43.35, 3.25], [43.25, 3.5]]]]}, "2022-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.25, 3.5], [43.47, 4.03], [44.0, 4.25], [44.25, 4.15], [44.5, 4.25], [44.75, 4.15], [44.82, 4.18], [44.97, 4.53], [45.5, 4.75], [45.75, 4.65], [46.0, 4.75], [46.25, 4.65], [46.5, 4.75], [46.75, 4.65], [46.82, 4.68], [46.97, 5.03], [47.5, 5.25], [48.03, 5.03], [48.25, 4.5], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.18, 2.32], [46.03, 1.97], [45.5, 1.75], [45.25, 1.85], [45.0, 1.75], [44.47, 1.97], [44.32, 2.32], [44.25, 2.35], [44.0, 2.25], [43.47, 2.47], [43.25, 3.0], [43.35, 3.25], [43.25, 3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7962684884134887}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.202592384156721}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.541988651945246, 28.608900611854494, 28.307259909594848]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.739899460292975, 29.83974871690134, 29.57564612281459]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2850616379579631, 1.321222482876452, 1.001493031635748]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7962684884134887, 1.7688527137034384, 1.237095174928072]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0927090451544306, 2.1710422609806366, 1.6440161325117466]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.7921977794866737, 2.6935328611675895, 2.1200353517815413]}}