{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:44.057582", "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-Feb-17_to_2012-Feb-19_358.5_17.0"}, "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": 2012020002351}, "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": "February 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 19 2012"}, "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": 76833.35549031131}, "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": ["Mali"]}, "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": 17.0}, "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": 358.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "358.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 357.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 17.0], [-2.53, 17.53], [-2.18, 17.68], [-2.03, 18.03], [-1.68, 18.18], [-1.53, 18.53], [-1.0, 18.75], [-0.75, 18.65], [-0.5, 18.75], [-0.2, 18.62], [-0.15, 18.75], [-0.25, 19.0], [-0.03, 19.53], [0.5, 19.75], [1.03, 19.53], [1.25, 19.0], [1.15, 18.75], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.53, 17.03], [1.75, 16.5], [1.53, 15.97], [1.0, 15.75], [0.75, 15.85], [0.5, 15.75], [0.25, 15.85], [0.0, 15.75], [-0.25, 15.85], [-0.32, 15.82], [-0.47, 15.47], [-1.0, 15.25], [-1.25, 15.35], [-1.5, 15.25], [-1.75, 15.35], [-2.0, 15.25], [-2.25, 15.35], [-2.5, 15.25], [-3.03, 15.47], [-3.25, 16.0], [-3.03, 16.53], [-2.68, 16.68], [-2.65, 16.75], [-2.75, 17.0]]]]}, "2012-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 17.0], [-2.53, 17.53], [-2.18, 17.68], [-2.03, 18.03], [-1.68, 18.18], [-1.53, 18.53], [-1.0, 18.75], [-0.75, 18.65], [-0.5, 18.75], [-0.2, 18.62], [-0.15, 18.75], [-0.25, 19.0], [-0.03, 19.53], [0.5, 19.75], [1.03, 19.53], [1.25, 19.0], [1.15, 18.75], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.53, 17.03], [1.75, 16.5], [1.53, 15.97], [1.0, 15.75], [0.75, 15.85], [0.5, 15.75], [0.25, 15.85], [0.0, 15.75], [-0.25, 15.85], [-0.32, 15.82], [-0.47, 15.47], [-1.0, 15.25], [-1.25, 15.35], [-1.5, 15.25], [-1.75, 15.35], [-2.0, 15.25], [-2.25, 15.35], [-2.5, 15.25], [-3.03, 15.47], [-3.25, 16.0], [-3.03, 16.53], [-2.68, 16.68], [-2.65, 16.75], [-2.75, 17.0]]]]}, "2012-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 17.0], [-2.53, 17.53], [-2.18, 17.68], [-2.03, 18.03], [-1.68, 18.18], [-1.53, 18.53], [-1.0, 18.75], [-0.75, 18.65], [-0.5, 18.75], [-0.2, 18.62], [-0.15, 18.75], [-0.25, 19.0], [-0.03, 19.53], [0.5, 19.75], [1.03, 19.53], [1.25, 19.0], [1.15, 18.75], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.53, 17.03], [1.75, 16.5], [1.53, 15.97], [1.0, 15.75], [0.75, 15.85], [0.5, 15.75], [0.25, 15.85], [0.0, 15.75], [-0.25, 15.85], [-0.32, 15.82], [-0.47, 15.47], [-1.0, 15.25], [-1.25, 15.35], [-1.5, 15.25], [-1.75, 15.35], [-2.0, 15.25], [-2.25, 15.35], [-2.5, 15.25], [-3.03, 15.47], [-3.25, 16.0], [-3.03, 16.53], [-2.68, 16.68], [-2.65, 16.75], [-2.75, 17.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.666920070885965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.8749653622354834}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.651081574079683, 28.784679152410433, 28.871888717883337]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.887463810755037, 29.94086434791285, 30.22880583865333]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8393943133736808, 3.891732464201217, 3.893769309131552]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.328196038886745, 4.499825956728614, 4.666920070885965]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4873171868582722, 1.5148441390409526, 1.485348758645986]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7069893842941202, 1.7661292699879234, 1.783932987829664]}}