{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:17.994255", "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": "2012-Apr-29_to_2012-May-02_343.5_13.5"}, "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": 2012040002785}, "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": "April 29 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 53827.80350550751}, "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": ["Gambia", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": 13.5}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 342.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 344.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 14.75], [-17.75, 15.0], [-17.65, 15.25], [-17.75, 15.5], [-17.53, 16.03], [-17.18, 16.18], [-17.03, 16.53], [-16.5, 16.75], [-15.97, 16.53], [-15.82, 16.18], [-15.47, 16.03], [-15.32, 15.68], [-14.97, 15.53], [-14.75, 15.0], [-14.97, 14.47], [-15.32, 14.32], [-15.35, 14.25], [-15.25, 14.0], [-15.35, 13.75], [-15.25, 13.5], [-15.47, 12.97], [-15.82, 12.82], [-15.97, 12.47], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0], [-17.65, 14.25], [-17.75, 14.5], [-17.65, 14.75]]]]}, "2012-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 14.75], [-17.75, 15.0], [-17.65, 15.25], [-17.75, 15.5], [-17.53, 16.03], [-17.18, 16.18], [-17.03, 16.53], [-16.5, 16.75], [-15.97, 16.53], [-15.82, 16.18], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.75, 15.5], [-14.85, 15.25], [-14.75, 15.0], [-14.97, 14.47], [-15.32, 14.32], [-15.35, 14.25], [-15.25, 14.0], [-15.35, 13.75], [-15.25, 13.5], [-15.47, 12.97], [-15.82, 12.82], [-15.97, 12.47], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0], [-17.65, 14.25], [-17.75, 14.5], [-17.65, 14.75]]]]}, "2012-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 14.75], [-17.75, 15.0], [-17.65, 15.25], [-17.75, 15.5], [-17.53, 16.03], [-17.18, 16.18], [-17.03, 16.53], [-16.5, 16.75], [-15.97, 16.53], [-15.82, 16.18], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.75, 15.5], [-14.85, 15.25], [-14.75, 15.0], [-14.97, 14.47], [-15.32, 14.32], [-15.35, 14.25], [-15.25, 14.0], [-15.35, 13.75], [-15.25, 13.5], [-15.47, 12.97], [-15.82, 12.82], [-15.97, 12.47], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0], [-17.65, 14.25], [-17.75, 14.5], [-17.65, 14.75]]]]}, "2012-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.65, 14.75], [-17.75, 15.0], [-17.53, 15.53], [-17.0, 15.75], [-16.75, 15.65], [-16.68, 15.68], [-16.53, 16.03], [-16.0, 16.25], [-15.75, 16.15], [-15.5, 16.25], [-14.97, 16.03], [-14.75, 15.5], [-14.85, 15.25], [-14.75, 15.0], [-14.97, 14.47], [-15.32, 14.32], [-15.35, 14.25], [-15.25, 14.0], [-15.35, 13.75], [-15.25, 13.5], [-15.47, 12.97], [-15.82, 12.82], [-15.97, 12.47], [-16.5, 12.25], [-17.03, 12.47], [-17.25, 13.0], [-17.15, 13.25], [-17.18, 13.32], [-17.53, 13.47], [-17.75, 14.0], [-17.65, 14.25], [-17.75, 14.5], [-17.65, 14.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.293743692159467}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.9737621097074385}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.360167182354928, 30.155625593600064, 29.57687325698248, 30.717839332851725]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.198272172610814, 34.98826655216641, 34.62021077958656, 34.2691298782039]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.520483941516575, 4.107617329495771, 3.468563182702143, 3.7997564823174383]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.148805164880059, 6.293743692159467, 5.324071904908237, 4.97943870916788]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.525062054541281, 2.1321446638924373, 1.8004384037223677, 1.9538925893460468]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.551743471894234, 2.7672393617423077, 2.2763147378169593, 2.7302543868827427]}}