{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:55.731378", "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-Oct-13_to_2022-Oct-15_25.5_4.5"}, "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": 2022100001973}, "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": "October 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 15 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": 123293.6082786954}, "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": ["Central African Republic", "Congo, The Democratic Republic of the", "South Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "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": 4.5}, "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": 25.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.5}, "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": 5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[23.75, 5.0], [23.97, 5.53], [24.5, 5.75], [24.75, 5.65], [24.82, 5.68], [24.97, 6.03], [25.5, 6.25], [26.03, 6.03], [26.18, 5.68], [26.25, 5.65], [26.5, 5.75], [26.75, 5.65], [27.0, 5.75], [27.25, 5.65], [27.5, 5.75], [27.75, 5.65], [28.0, 5.75], [28.25, 5.65], [28.5, 5.75], [29.03, 5.53], [29.18, 5.18], [29.25, 5.15], [29.5, 5.25], [30.03, 5.03], [30.25, 4.5], [30.15, 4.25], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.0, 2.75], [28.75, 2.85], [28.5, 2.75], [28.25, 2.85], [28.0, 2.75], [27.47, 2.97], [27.32, 3.32], [27.25, 3.35], [27.0, 3.25], [26.75, 3.35], [26.68, 3.32], [26.53, 2.97], [26.0, 2.75], [25.75, 2.85], [25.68, 2.82], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.25, 2.5], [24.35, 2.75], [24.25, 3.0], [24.38, 3.3], [23.97, 3.47], [23.75, 4.0], [23.85, 4.25], [23.75, 4.5], [23.85, 4.75], [23.75, 5.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.75, 4.5], [23.85, 4.75], [23.75, 5.0], [23.97, 5.53], [24.5, 5.75], [24.75, 5.65], [24.82, 5.68], [24.97, 6.03], [25.5, 6.25], [26.03, 6.03], [26.18, 5.68], [26.25, 5.65], [26.5, 5.75], [26.75, 5.65], [27.0, 5.75], [27.25, 5.65], [27.5, 5.75], [27.75, 5.65], [28.0, 5.75], [28.25, 5.65], [28.5, 5.75], [29.03, 5.53], [29.18, 5.18], [29.25, 5.15], [29.5, 5.25], [30.03, 5.03], [30.25, 4.5], [30.15, 4.25], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.0, 2.75], [28.75, 2.85], [28.5, 2.75], [28.25, 2.85], [28.0, 2.75], [27.47, 2.97], [27.32, 3.32], [27.25, 3.35], [27.0, 3.25], [26.75, 3.35], [26.68, 3.32], [26.53, 2.97], [26.0, 2.75], [25.75, 2.85], [25.68, 2.82], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.25, 2.5], [24.35, 2.75], [24.25, 3.0], [24.38, 3.3], [23.97, 3.47], [23.75, 4.0], [23.85, 4.25], [23.75, 4.5]]]]}, "2022-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.75, 4.5], [23.85, 4.75], [23.75, 5.0], [23.97, 5.53], [24.5, 5.75], [24.75, 5.65], [24.82, 5.68], [24.97, 6.03], [25.5, 6.25], [26.03, 6.03], [26.18, 5.68], [26.25, 5.65], [26.5, 5.75], [26.75, 5.65], [27.0, 5.75], [27.25, 5.65], [27.5, 5.75], [27.75, 5.65], [28.0, 5.75], [28.25, 5.65], [28.5, 5.75], [29.03, 5.53], [29.18, 5.18], [29.25, 5.15], [29.5, 5.25], [30.03, 5.03], [30.25, 4.5], [30.15, 4.25], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.0, 2.75], [28.75, 2.85], [28.5, 2.75], [28.25, 2.85], [28.0, 2.75], [27.47, 2.97], [27.32, 3.32], [27.25, 3.35], [27.0, 3.25], [26.75, 3.35], [26.68, 3.32], [26.53, 2.97], [26.0, 2.75], [25.75, 2.85], [25.68, 2.82], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.25, 2.5], [24.35, 2.75], [24.25, 3.0], [24.38, 3.3], [23.97, 3.47], [23.75, 4.0], [23.85, 4.25], [23.75, 4.5]]]]}, "2022-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.75, 4.5], [23.85, 4.75], [23.75, 5.0], [23.97, 5.53], [24.5, 5.75], [24.75, 5.65], [24.82, 5.68], [24.97, 6.03], [25.5, 6.25], [26.03, 6.03], [26.18, 5.68], [26.25, 5.65], [26.5, 5.75], [26.75, 5.65], [27.0, 5.75], [27.25, 5.65], [27.5, 5.75], [27.75, 5.65], [28.0, 5.75], [28.25, 5.65], [28.5, 5.75], [29.03, 5.53], [29.18, 5.18], [29.25, 5.15], [29.5, 5.25], [30.03, 5.03], [30.25, 4.5], [30.15, 4.25], [30.25, 4.0], [30.15, 3.75], [30.25, 3.5], [30.03, 2.97], [29.5, 2.75], [29.25, 2.85], [29.0, 2.75], [28.75, 2.85], [28.5, 2.75], [28.25, 2.85], [28.0, 2.75], [27.47, 2.97], [27.32, 3.32], [27.25, 3.35], [27.0, 3.25], [26.75, 3.35], [26.68, 3.32], [26.53, 2.97], [26.0, 2.75], [25.75, 2.85], [25.68, 2.82], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.25, 2.5], [24.35, 2.75], [24.25, 3.0], [24.38, 3.3], [23.97, 3.47], [23.75, 4.0], [23.85, 4.25], [23.75, 4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5123185920583637}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8596079376380132}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.82480376263328, 25.934761229781373, 25.324837137698808]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.42462059758998, 26.639634698477778, 26.153575279733275]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9831176916037634, 2.1028788902881543, 1.4928272310221218]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5123185920583637, 2.4768710427540555, 2.0233468678628697]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.193792496595404, 2.2945787580525616, 1.6087911043888443]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.8113416262607958, 2.7805067370145697, 2.1655877846310405]}}