{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:45.555618", "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": "2024-Jul-22_to_2024-Jul-26_348.0_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": 2024070002234}, "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": "July 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 26 2024"}, "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": 64282.916569582194}, "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": ["Sierra Leone"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": ["North Atlantic 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": 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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 9.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.0, 8.25], [-11.47, 8.03], [-11.25, 7.5], [-11.47, 6.97], [-12.0, 6.75], [-12.53, 6.97], [-12.75, 7.5], [-12.53, 8.03], [-12.0, 8.25]]]]}, "2024-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 8.53], [-15.5, 8.75], [-15.25, 8.65], [-15.18, 8.68], [-15.03, 9.03], [-14.68, 9.18], [-14.53, 9.53], [-14.0, 9.75], [-13.47, 9.53], [-13.3, 9.12], [-13.0, 9.25], [-12.47, 9.03], [-12.32, 8.68], [-12.25, 8.65], [-12.18, 8.68], [-12.03, 9.03], [-11.5, 9.25], [-10.97, 9.03], [-10.82, 8.68], [-10.47, 8.53], [-10.25, 8.0], [-10.47, 7.47], [-11.0, 7.25], [-11.25, 7.35], [-11.32, 7.32], [-11.47, 6.97], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.0, 6.96], [-13.5, 6.75], [-13.75, 6.85], [-14.0, 6.75], [-14.25, 6.85], [-14.5, 6.75], [-14.75, 6.85], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-16.03, 6.97], [-16.25, 7.5], [-16.15, 7.75], [-16.25, 8.0], [-16.03, 8.53]]]]}, "2024-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 8.53], [-15.5, 8.75], [-15.25, 8.65], [-15.18, 8.68], [-15.03, 9.03], [-14.68, 9.18], [-14.53, 9.53], [-14.0, 9.75], [-13.47, 9.53], [-13.3, 9.12], [-13.0, 9.25], [-12.47, 9.03], [-12.32, 8.68], [-12.25, 8.65], [-12.18, 8.68], [-12.03, 9.03], [-11.5, 9.25], [-10.97, 9.03], [-10.82, 8.68], [-10.47, 8.53], [-10.25, 8.0], [-10.47, 7.47], [-11.0, 7.25], [-11.25, 7.35], [-11.32, 7.32], [-11.47, 6.97], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.0, 6.96], [-13.5, 6.75], [-13.75, 6.85], [-14.0, 6.75], [-14.25, 6.85], [-14.5, 6.75], [-14.75, 6.85], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-16.03, 6.97], [-16.25, 7.5], [-16.15, 7.75], [-16.25, 8.0], [-16.03, 8.53]]]]}, "2024-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.03, 8.53], [-15.5, 8.75], [-15.25, 8.65], [-15.18, 8.68], [-15.03, 9.03], [-14.68, 9.18], [-14.53, 9.53], [-14.0, 9.75], [-13.47, 9.53], [-13.3, 9.12], [-13.0, 9.25], [-12.47, 9.03], [-12.32, 8.68], [-12.25, 8.65], [-12.18, 8.68], [-12.03, 9.03], [-11.5, 9.25], [-10.97, 9.03], [-10.82, 8.68], [-10.47, 8.53], [-10.25, 8.0], [-10.47, 7.47], [-11.0, 7.25], [-11.25, 7.35], [-11.32, 7.32], [-11.47, 6.97], [-12.0, 6.75], [-12.25, 6.85], [-12.5, 6.75], [-13.0, 6.96], [-13.5, 6.75], [-13.75, 6.85], [-14.0, 6.75], [-14.25, 6.85], [-14.5, 6.75], [-14.75, 6.85], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-16.03, 6.97], [-16.25, 7.5], [-16.15, 7.75], [-16.25, 8.0], [-16.03, 8.53]]]]}, "2024-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.0, 8.25], [-11.47, 8.03], [-11.25, 7.5], [-11.47, 6.97], [-12.0, 6.75], [-12.53, 6.97], [-12.75, 7.5], [-12.53, 8.03], [-12.0, 8.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.702804314164439}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9081924572880474}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.229678757309728, 25.946086085525337, 26.00740806604466, 26.14480015910243, 25.592856733402414]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.229678757309728, 26.44681575826894, 26.614239927427946, 26.792995951696923, 25.592856733402414]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.783847640078875, 0.8180095362927204, 0.8812726682474693, 1.0189622257214226, 1.165529048150347]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.783847640078875, 1.2927839379347574, 1.221574133757258, 1.702804314164439, 1.165529048150347]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3245300786868897, 1.5787114318001376, 1.7365402494719937, 1.98436509968847, 1.9732174727234237]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3245300786868897, 1.828440745287346, 2.1913345746560413, 2.513434795511563, 1.9732174727234237]}}