{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:55.049795", "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-Aug-03_to_2024-Aug-07_351.0_6.5"}, "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": 2024080001209}, "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": "August 03 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 07 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": 104486.78593971142}, "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": ["C\u00f4te d'Ivoire", "Guinea", "Liberia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Atlantic-Ocean", "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": 6.5}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 5.0], [-11.53, 5.53], [-11.18, 5.68], [-11.03, 6.03], [-10.5, 6.25], [-10.25, 6.15], [-10.0, 6.25], [-9.47, 6.03], [-9.32, 5.68], [-9.25, 5.65], [-9.0, 5.75], [-8.47, 5.53], [-8.25, 5.0], [-8.47, 4.47], [-8.82, 4.32], [-8.97, 3.97], [-9.5, 3.75], [-9.75, 3.85], [-10.0, 3.75], [-10.25, 3.85], [-10.5, 3.75], [-11.03, 3.97], [-11.18, 4.32], [-11.53, 4.47], [-11.75, 5.0]]]]}, "2024-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 5.0], [-11.53, 5.53], [-11.18, 5.68], [-11.04, 6.0], [-11.25, 6.5], [-11.03, 7.03], [-10.68, 7.18], [-10.53, 7.53], [-10.0, 7.75], [-9.75, 7.65], [-9.5, 7.75], [-9.25, 7.65], [-9.0, 7.75], [-8.75, 7.65], [-8.5, 7.75], [-7.97, 7.53], [-7.82, 7.18], [-7.47, 7.03], [-7.25, 6.5], [-7.35, 6.25], [-7.25, 6.0], [-7.47, 5.47], [-7.82, 5.32], [-7.97, 4.97], [-8.32, 4.82], [-8.47, 4.47], [-8.82, 4.32], [-8.97, 3.97], [-9.5, 3.75], [-9.75, 3.85], [-10.0, 3.75], [-10.25, 3.85], [-10.5, 3.75], [-11.03, 3.97], [-11.18, 4.32], [-11.53, 4.47], [-11.75, 5.0]]]]}, "2024-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 5.0], [-11.53, 5.53], [-11.18, 5.68], [-11.04, 6.0], [-11.25, 6.5], [-11.03, 7.03], [-10.68, 7.18], [-10.65, 7.25], [-10.75, 7.5], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.0, 8.25], [-8.75, 8.15], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.47, 8.03], [-7.25, 7.5], [-7.35, 7.25], [-7.25, 7.0], [-7.35, 6.75], [-7.25, 6.5], [-7.35, 6.25], [-7.25, 6.0], [-7.47, 5.47], [-7.82, 5.32], [-7.97, 4.97], [-8.32, 4.82], [-8.47, 4.47], [-8.82, 4.32], [-8.97, 3.97], [-9.5, 3.75], [-9.75, 3.85], [-10.0, 3.75], [-10.25, 3.85], [-10.5, 3.75], [-11.03, 3.97], [-11.18, 4.32], [-11.53, 4.47], [-11.75, 5.0]]]]}, "2024-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.25, 6.5], [-11.03, 7.03], [-10.68, 7.18], [-10.65, 7.25], [-10.75, 7.5], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.0, 8.25], [-8.75, 8.15], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.47, 8.03], [-7.25, 7.5], [-7.35, 7.25], [-7.25, 7.0], [-7.35, 6.75], [-7.25, 6.5], [-7.35, 6.25], [-7.25, 6.0], [-7.47, 5.47], [-7.82, 5.32], [-7.97, 4.97], [-8.5, 4.75], [-8.75, 4.85], [-9.0, 4.75], [-9.25, 4.85], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-11.03, 5.97], [-11.25, 6.5]]]]}, "2024-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.75, 7.5], [-10.53, 8.03], [-10.0, 8.25], [-9.75, 8.15], [-9.5, 8.25], [-9.25, 8.15], [-9.0, 8.25], [-8.75, 8.15], [-8.5, 8.25], [-8.25, 8.15], [-8.0, 8.25], [-7.47, 8.03], [-7.25, 7.5], [-7.35, 7.25], [-7.25, 7.0], [-7.35, 6.75], [-7.25, 6.5], [-7.47, 5.97], [-7.82, 5.82], [-7.97, 5.47], [-8.32, 5.32], [-8.47, 4.97], [-9.0, 4.75], [-9.53, 4.97], [-9.68, 5.32], [-10.03, 5.47], [-10.18, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-11.03, 5.97], [-11.25, 6.5], [-11.03, 7.03], [-10.68, 7.18], [-10.65, 7.25], [-10.75, 7.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5353907147779182}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9552798710516928}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.694547383775614, 25.231079858961778, 25.279499397900793, 24.803018778798844, 24.719900482443904]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.82272635423766, 25.8211587992609, 26.107864604537838, 25.309273721550483, 25.27447400106297]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.5357815242577886, 0.7996026696347721, 1.1029827346399907, 1.0251572758891168, 1.0324616523856265]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.5994234128235121, 1.2243963708047545, 1.5353907147779182, 1.326325320033618, 1.3938371975405062]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4230287736741853, 1.5571914611686115, 2.0010497935078764, 1.6220808398547366, 1.532636776267006]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.634730228602359, 1.9826342668746115, 2.7865559970704976, 2.002429685574756, 1.9194587189130359]}}