{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:54.647810", "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-Nov-19_to_2012-Nov-25_3.5_9.0"}, "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": 2012110002240}, "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": "November 19 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 25 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 79292.2305015146}, "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": ["Benin", "Nigeria"]}, "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": []}, "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": 9.0}, "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": 3.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 1.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 6.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.47, 9.53], [1.82, 9.68], [1.97, 10.03], [2.32, 10.18], [2.47, 10.53], [3.0, 10.75], [3.25, 10.65], [3.5, 10.75], [3.8, 10.63], [3.97, 11.03], [4.5, 11.25], [4.75, 11.15], [5.0, 11.25], [5.53, 11.03], [5.75, 10.5], [5.57, 10.07], [6.0, 10.25], [6.53, 10.03], [6.75, 9.5], [6.53, 8.97], [6.0, 8.75], [5.7, 8.88], [5.53, 8.47], [5.0, 8.25], [4.75, 8.35], [4.68, 8.32], [4.53, 7.97], [4.0, 7.75], [3.75, 7.85], [3.5, 7.75], [3.25, 7.85], [3.0, 7.75], [2.75, 7.85], [2.5, 7.75], [2.25, 7.85], [2.0, 7.75], [1.47, 7.97], [1.25, 8.5], [1.35, 8.75], [1.25, 9.0], [1.47, 9.53]]]]}, "2012-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.47, 9.53], [1.82, 9.68], [1.85, 9.75], [1.75, 10.0], [1.97, 10.53], [2.5, 10.75], [2.75, 10.65], [3.0, 10.75], [3.25, 10.65], [3.5, 10.75], [3.8, 10.63], [3.97, 11.03], [4.5, 11.25], [4.75, 11.15], [5.0, 11.25], [5.53, 11.03], [5.68, 10.68], [6.03, 10.53], [6.18, 10.18], [6.53, 10.03], [6.75, 9.5], [6.53, 8.97], [6.0, 8.75], [5.7, 8.88], [5.53, 8.47], [5.0, 8.25], [4.75, 8.35], [4.68, 8.32], [4.53, 7.97], [4.0, 7.75], [3.75, 7.85], [3.5, 7.75], [3.25, 7.85], [3.0, 7.75], [2.75, 7.85], [2.5, 7.75], [2.25, 7.85], [2.0, 7.75], [1.47, 7.97], [1.25, 8.5], [1.35, 8.75], [1.25, 9.0], [1.47, 9.53]]]]}, "2012-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.47, 9.53], [1.82, 9.68], [1.85, 9.75], [1.75, 10.0], [1.97, 10.53], [2.5, 10.75], [2.75, 10.65], [3.0, 10.75], [3.25, 10.65], [3.5, 10.75], [3.8, 10.63], [3.97, 11.03], [4.5, 11.25], [4.75, 11.15], [5.0, 11.25], [5.53, 11.03], [5.68, 10.68], [6.03, 10.53], [6.18, 10.18], [6.53, 10.03], [6.75, 9.5], [6.53, 8.97], [6.0, 8.75], [5.7, 8.88], [5.53, 8.47], [5.0, 8.25], [4.75, 8.35], [4.68, 8.32], [4.53, 7.97], [4.0, 7.75], [3.75, 7.85], [3.5, 7.75], [3.25, 7.85], [3.0, 7.75], [2.75, 7.85], [2.5, 7.75], [2.25, 7.85], [2.0, 7.75], [1.47, 7.97], [1.25, 8.5], [1.35, 8.75], [1.25, 9.0], [1.47, 9.53]]]]}, "2012-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.47, 9.53], [1.82, 9.68], [1.85, 9.75], [1.75, 10.0], [1.97, 10.53], [2.5, 10.75], [3.0, 10.54], [3.5, 10.75], [3.8, 10.63], [3.97, 11.03], [4.5, 11.25], [5.03, 11.03], [5.18, 10.68], [5.25, 10.65], [5.5, 10.75], [6.03, 10.53], [6.18, 10.18], [6.53, 10.03], [6.75, 9.5], [6.53, 8.97], [6.0, 8.75], [5.7, 8.88], [5.53, 8.47], [5.0, 8.25], [4.75, 8.35], [4.68, 8.32], [4.53, 7.97], [4.0, 7.75], [3.75, 7.85], [3.5, 7.75], [3.25, 7.85], [3.0, 7.75], [2.75, 7.85], [2.5, 7.75], [2.25, 7.85], [2.0, 7.75], [1.47, 7.97], [1.25, 8.5], [1.35, 8.75], [1.25, 9.0], [1.47, 9.53]]]]}, "2012-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.75, 10.0], [1.97, 10.53], [2.5, 10.75], [3.0, 10.54], [3.5, 10.75], [3.8, 10.63], [3.97, 11.03], [4.5, 11.25], [5.03, 11.03], [5.25, 10.5], [5.15, 10.25], [5.18, 10.18], [5.53, 10.03], [5.75, 9.5], [5.65, 9.25], [5.75, 9.0], [5.53, 8.47], [5.0, 8.25], [4.5, 8.46], [4.0, 8.25], [3.75, 8.35], [3.5, 8.25], [3.25, 8.35], [3.0, 8.25], [2.75, 8.35], [2.5, 8.25], [2.25, 8.35], [2.0, 8.25], [1.47, 8.47], [1.25, 9.0], [1.47, 9.53], [1.82, 9.68], [1.85, 9.75], [1.75, 10.0]]]]}, "2012-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.97, 8.47], [1.75, 9.0], [1.97, 9.53], [2.5, 9.75], [3.0, 9.54], [3.5, 9.75], [4.03, 9.53], [4.25, 9.0], [4.03, 8.47], [3.5, 8.25], [3.0, 8.46], [2.5, 8.25], [1.97, 8.47]]]]}, "2012-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.5, 9.75], [4.03, 9.53], [4.25, 9.0], [4.03, 8.47], [3.5, 8.25], [2.97, 8.47], [2.75, 9.0], [2.97, 9.53], [3.5, 9.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5711752433887227}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4502777323621079}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.912906836460024, 28.95338426507476, 28.955020346523042, 28.975450760550927, 29.10590173146403, 28.06717216860136, 27.912593655368994]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.07028534642768, 31.368881311729353, 31.312861769908807, 31.482691505006812, 31.713394934261373, 28.238149845130124, 27.912593655368994]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4408781271383786, 1.4905784409834064, 1.4210145651609571, 1.4176513917519173, 1.5777765319571206, 1.0632888625231942, 1.0549215993788152]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9340571721049287, 2.127251270182626, 2.039999362056051, 2.2741509534899365, 2.5711752433887227, 1.106171781647106, 1.0549215993788152]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5856782295103888, 1.601589628234742, 1.5064663454018854, 1.5181075362259164, 1.6035948856098812, 1.1409423966896777, 1.1500493805433543]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0406616608351222, 2.0396776644315957, 1.7320475861509093, 1.8165929896985673, 2.045575818731364, 1.1463287340178343, 1.1500493805433543]}}