{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:10.425518", "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-Jun-05_to_2022-Jun-09_6.5_7.5"}, "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": 2022060001728}, "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": "June 05 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 09 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 82889.32515239905}, "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": ["Nigeria"]}, "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": 7.5}, "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": 6.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 3.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[5.97, 8.03], [6.5, 8.25], [6.75, 8.15], [7.0, 8.25], [7.53, 8.03], [7.75, 7.5], [7.53, 6.97], [7.18, 6.82], [7.03, 6.47], [6.63, 6.3], [6.68, 6.18], [7.03, 6.03], [7.25, 5.5], [7.03, 4.97], [6.68, 4.82], [6.65, 4.75], [6.75, 4.5], [6.53, 3.97], [6.0, 3.75], [5.75, 3.85], [5.5, 3.75], [4.97, 3.97], [4.75, 4.5], [4.85, 4.75], [4.75, 5.0], [4.85, 5.25], [4.82, 5.32], [4.47, 5.47], [4.32, 5.82], [3.97, 5.97], [3.82, 6.32], [3.75, 6.35], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.47, 6.47], [2.25, 7.0], [2.35, 7.25], [2.25, 7.5], [2.46, 8.0], [2.25, 8.5], [2.47, 9.03], [3.0, 9.25], [3.53, 9.03], [3.68, 8.68], [3.75, 8.65], [4.0, 8.75], [4.53, 8.53], [4.68, 8.18], [5.03, 8.03], [5.18, 7.68], [5.5, 7.54], [5.82, 7.68], [5.97, 8.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 9.03], [3.0, 9.25], [3.53, 9.03], [3.75, 8.5], [3.53, 7.97], [3.0, 7.75], [2.47, 7.97], [2.25, 8.5], [2.47, 9.03]]]]}, "2022-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.96, 6.0], [4.75, 6.5], [4.97, 7.03], [5.32, 7.18], [5.47, 7.53], [5.82, 7.68], [5.97, 8.03], [6.5, 8.25], [6.75, 8.15], [7.0, 8.25], [7.53, 8.03], [7.75, 7.5], [7.53, 6.97], [7.18, 6.82], [7.03, 6.47], [6.63, 6.3], [6.75, 6.0], [6.53, 5.47], [6.18, 5.32], [6.04, 5.0], [6.25, 4.5], [6.03, 3.97], [5.5, 3.75], [4.97, 3.97], [4.75, 4.5], [4.96, 5.0], [4.75, 5.5], [4.96, 6.0]]], [[[3.0, 7.75], [2.47, 7.97], [2.25, 8.5], [2.47, 9.03], [3.0, 9.25], [3.53, 9.03], [3.75, 8.5], [3.53, 7.97], [3.0, 7.75]]]]}, "2022-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 7.5], [2.46, 8.0], [2.25, 8.5], [2.47, 9.03], [3.0, 9.25], [3.53, 9.03], [3.68, 8.68], [3.75, 8.65], [4.0, 8.75], [4.53, 8.53], [4.68, 8.18], [5.03, 8.03], [5.18, 7.68], [5.5, 7.54], [5.82, 7.68], [5.97, 8.03], [6.5, 8.25], [6.75, 8.15], [7.0, 8.25], [7.53, 8.03], [7.75, 7.5], [7.53, 6.97], [7.18, 6.82], [7.03, 6.47], [6.63, 6.3], [6.68, 6.18], [7.03, 6.03], [7.25, 5.5], [7.03, 4.97], [6.68, 4.82], [6.65, 4.75], [6.75, 4.5], [6.53, 3.97], [6.0, 3.75], [5.75, 3.85], [5.5, 3.75], [4.97, 3.97], [4.75, 4.5], [4.85, 4.75], [4.75, 5.0], [4.85, 5.25], [4.82, 5.32], [4.47, 5.47], [4.32, 5.82], [3.97, 5.97], [3.82, 6.32], [3.75, 6.35], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.47, 6.47], [2.25, 7.0], [2.35, 7.25], [2.25, 7.5]]]]}, "2022-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 7.5], [2.46, 8.0], [2.25, 8.5], [2.47, 9.03], [3.0, 9.25], [3.53, 9.03], [3.68, 8.68], [3.75, 8.65], [4.0, 8.75], [4.53, 8.53], [4.68, 8.18], [5.03, 8.03], [5.18, 7.68], [5.5, 7.54], [5.82, 7.68], [5.97, 8.03], [6.5, 8.25], [6.75, 8.15], [7.0, 8.25], [7.53, 8.03], [7.75, 7.5], [7.53, 6.97], [7.18, 6.82], [7.03, 6.47], [6.63, 6.3], [6.68, 6.18], [7.03, 6.03], [7.25, 5.5], [7.03, 4.97], [6.68, 4.82], [6.65, 4.75], [6.75, 4.5], [6.53, 3.97], [6.0, 3.75], [5.75, 3.85], [5.5, 3.75], [4.97, 3.97], [4.75, 4.5], [4.85, 4.75], [4.75, 5.0], [4.85, 5.25], [4.82, 5.32], [4.47, 5.47], [4.32, 5.82], [3.97, 5.97], [3.82, 6.32], [3.75, 6.35], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.47, 6.47], [2.25, 7.0], [2.35, 7.25], [2.25, 7.5]]]]}, "2022-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 7.5], [2.47, 8.03], [2.82, 8.18], [2.97, 8.53], [3.5, 8.75], [3.75, 8.65], [4.0, 8.75], [4.53, 8.53], [4.68, 8.18], [5.03, 8.03], [5.18, 7.68], [5.5, 7.54], [5.82, 7.68], [5.97, 8.03], [6.5, 8.25], [6.75, 8.15], [7.0, 8.25], [7.53, 8.03], [7.75, 7.5], [7.53, 6.97], [7.18, 6.82], [7.03, 6.47], [6.63, 6.3], [6.68, 6.18], [7.03, 6.03], [7.25, 5.5], [7.03, 4.97], [6.68, 4.82], [6.65, 4.75], [6.75, 4.5], [6.53, 3.97], [6.0, 3.75], [5.47, 3.97], [5.32, 4.32], [4.97, 4.47], [4.75, 5.0], [4.85, 5.25], [4.82, 5.32], [4.47, 5.47], [4.32, 5.82], [3.97, 5.97], [3.82, 6.32], [3.75, 6.35], [3.5, 6.25], [3.25, 6.35], [3.0, 6.25], [2.47, 6.47], [2.25, 7.0], [2.35, 7.25], [2.25, 7.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1554429357609592}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3388975586894754}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.338682003177553, 27.444525264014942, 27.09107869929676, 27.263395457692525, 27.185084967644798]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.338682003177553, 28.676441998444204, 27.903526137179426, 28.260064492481774, 28.173699512324276]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3143990907403804, 1.3879896642104212, 1.222923060578098, 1.4096734853557973, 1.3710187965805585]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3143990907403804, 1.9962558857579324, 1.5262984429768949, 2.1554429357609592, 1.679883240377933]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3196264661474875, 1.70625597165568, 1.569455540607343, 1.7523059497771907, 1.6919513715331087]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3196264661474875, 2.294139884434832, 2.1105237066837406, 2.3602441387359767, 2.0087508262157425]}}