{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:32.430659", "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-Oct-21_to_2024-Oct-23_10.0_16.0"}, "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": 2024100001978}, "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 21 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 23 2024"}, "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": 53434.89216068232}, "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": ["Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 16.0}, "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": 10.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 7.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 17.0], [7.47, 17.53], [8.0, 17.75], [8.25, 17.65], [8.5, 17.75], [8.75, 17.65], [9.0, 17.75], [9.25, 17.65], [9.32, 17.68], [9.47, 18.03], [10.0, 18.25], [10.53, 18.03], [10.75, 17.5], [10.53, 16.97], [10.18, 16.82], [10.15, 16.75], [10.18, 16.68], [10.53, 16.53], [10.75, 16.0], [10.65, 15.75], [10.75, 15.5], [10.53, 14.97], [10.18, 14.82], [10.03, 14.47], [9.5, 14.25], [9.25, 14.35], [9.0, 14.25], [8.47, 14.47], [8.32, 14.82], [7.97, 14.97], [7.75, 15.5], [7.85, 15.75], [7.75, 16.0], [7.85, 16.25], [7.82, 16.32], [7.47, 16.47], [7.25, 17.0]]]]}, "2024-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 17.0], [7.47, 17.53], [8.0, 17.75], [8.25, 17.65], [8.5, 17.75], [8.75, 17.65], [9.0, 17.75], [9.25, 17.65], [9.32, 17.68], [9.47, 18.03], [10.0, 18.25], [10.53, 18.03], [10.75, 17.5], [10.53, 16.97], [10.18, 16.82], [10.15, 16.75], [10.18, 16.68], [10.53, 16.53], [10.75, 16.0], [10.65, 15.75], [10.75, 15.5], [10.53, 14.97], [10.18, 14.82], [10.03, 14.47], [9.5, 14.25], [9.25, 14.35], [9.0, 14.25], [8.47, 14.47], [8.32, 14.82], [7.97, 14.97], [7.75, 15.5], [7.85, 15.75], [7.75, 16.0], [7.85, 16.25], [7.82, 16.32], [7.47, 16.47], [7.25, 17.0]]]]}, "2024-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.25, 17.0], [7.47, 17.53], [8.0, 17.75], [8.25, 17.65], [8.5, 17.75], [8.75, 17.65], [9.0, 17.75], [9.25, 17.65], [9.32, 17.68], [9.47, 18.03], [10.0, 18.25], [10.53, 18.03], [10.75, 17.5], [10.53, 16.97], [10.18, 16.82], [10.15, 16.75], [10.18, 16.68], [10.53, 16.53], [10.75, 16.0], [10.65, 15.75], [10.75, 15.5], [10.53, 14.97], [10.18, 14.82], [10.03, 14.47], [9.5, 14.25], [9.25, 14.35], [9.0, 14.25], [8.47, 14.47], [8.32, 14.82], [7.97, 14.97], [7.75, 15.5], [7.85, 15.75], [7.75, 16.0], [7.85, 16.25], [7.82, 16.32], [7.47, 16.47], [7.25, 17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.527699719184568}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.416295256444792}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [31.300334337022605, 31.577546550609497, 30.678981752748825]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.84579874674483, 32.71362330118819, 33.04675699869796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.323504468302837, 3.8040561999102445, 3.121325101121294]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.340359065214216, 4.527699719184568, 3.8110350423064574]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.853848857137911, 2.0747407840832794, 1.6891729860386127]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.298875877716774, 2.366738881299583, 1.9695888447191958]}}