{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:31.997561", "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": "2014-May-23_to_2014-May-28_11.0_15.5"}, "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": 2014050002533}, "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": "May 23 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 71246.89529661655}, "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", "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": 15.5}, "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": 11.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 13.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.0, 17.75], [10.25, 17.65], [10.5, 17.75], [11.0, 17.54], [11.5, 17.75], [12.0, 17.54], [12.5, 17.75], [12.75, 17.65], [13.0, 17.75], [13.53, 17.53], [13.68, 17.18], [14.03, 17.03], [14.25, 16.5], [14.03, 15.97], [13.5, 15.75], [13.25, 15.85], [13.0, 15.75], [12.75, 15.85], [12.5, 15.75], [12.25, 15.85], [12.18, 15.82], [12.03, 15.47], [11.5, 15.25], [10.97, 15.47], [10.82, 15.82], [10.75, 15.85], [10.5, 15.75], [10.25, 15.85], [10.0, 15.75], [9.75, 15.85], [9.5, 15.75], [8.97, 15.97], [8.75, 16.5], [8.97, 17.03], [9.32, 17.18], [9.47, 17.53], [10.0, 17.75]]]]}, "2014-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.0, 17.75], [10.25, 17.65], [10.5, 17.75], [11.0, 17.54], [11.5, 17.75], [12.0, 17.54], [12.5, 17.75], [12.75, 17.65], [13.0, 17.75], [13.53, 17.53], [13.68, 17.18], [14.03, 17.03], [14.25, 16.5], [14.03, 15.97], [13.5, 15.75], [13.25, 15.85], [13.0, 15.75], [12.75, 15.85], [12.5, 15.75], [12.25, 15.85], [12.18, 15.82], [12.15, 15.75], [12.25, 15.5], [12.03, 14.97], [11.68, 14.82], [11.65, 14.75], [11.75, 14.5], [11.53, 13.97], [11.0, 13.75], [10.47, 13.97], [10.32, 14.32], [9.97, 14.47], [9.75, 15.0], [9.85, 15.25], [9.75, 15.5], [9.88, 15.8], [9.75, 15.85], [9.5, 15.75], [8.97, 15.97], [8.75, 16.5], [8.97, 17.03], [9.32, 17.18], [9.47, 17.53], [10.0, 17.75]]]]}, "2014-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.0, 17.75], [10.25, 17.65], [10.5, 17.75], [11.0, 17.54], [11.5, 17.75], [12.0, 17.54], [12.5, 17.75], [12.75, 17.65], [13.0, 17.75], [13.53, 17.53], [13.68, 17.18], [14.03, 17.03], [14.25, 16.5], [14.03, 15.97], [13.5, 15.75], [13.25, 15.85], [13.0, 15.75], [12.75, 15.85], [12.5, 15.75], [12.25, 15.85], [12.18, 15.82], [12.15, 15.75], [12.25, 15.5], [12.03, 14.97], [11.68, 14.82], [11.65, 14.75], [11.75, 14.5], [11.53, 13.97], [11.0, 13.75], [10.47, 13.97], [10.32, 14.32], [9.97, 14.47], [9.75, 15.0], [9.85, 15.25], [9.75, 15.5], [9.88, 15.8], [9.75, 15.85], [9.5, 15.75], [8.97, 15.97], [8.75, 16.5], [8.97, 17.03], [9.32, 17.18], [9.47, 17.53], [10.0, 17.75]]]]}, "2014-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.25, 15.5], [9.47, 16.03], [9.82, 16.18], [9.97, 16.53], [10.5, 16.75], [10.75, 16.65], [11.0, 16.75], [11.25, 16.65], [11.5, 16.75], [12.03, 16.53], [12.25, 16.0], [12.15, 15.75], [12.25, 15.5], [12.03, 14.97], [11.68, 14.82], [11.65, 14.75], [11.75, 14.5], [11.53, 13.97], [11.0, 13.75], [10.47, 13.97], [10.32, 14.32], [9.97, 14.47], [9.82, 14.82], [9.47, 14.97], [9.25, 15.5]]]]}, "2014-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.25, 15.5], [9.47, 16.03], [9.82, 16.18], [9.97, 16.53], [10.5, 16.75], [10.75, 16.65], [11.0, 16.75], [11.53, 16.53], [11.75, 16.0], [11.65, 15.75], [11.75, 15.5], [11.65, 15.25], [11.75, 15.0], [11.53, 14.47], [11.0, 14.25], [10.75, 14.35], [10.5, 14.25], [9.97, 14.47], [9.82, 14.82], [9.47, 14.97], [9.25, 15.5]]]]}, "2014-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.5, 16.75], [10.75, 16.65], [11.0, 16.75], [11.53, 16.53], [11.75, 16.0], [11.65, 15.75], [11.75, 15.5], [11.65, 15.25], [11.75, 15.0], [11.53, 14.47], [11.0, 14.25], [10.47, 14.47], [10.32, 14.82], [10.25, 14.85], [10.0, 14.75], [9.47, 14.97], [9.25, 15.5], [9.47, 16.03], [9.82, 16.18], [9.97, 16.53], [10.5, 16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.6025536623602648}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.164132975371108}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.62080162767728, 35.51840620010512, 34.98451696021675, 35.62391887742973, 35.13270387748736, 35.1391612453736]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.749770478754726, 36.62755166449614, 36.12032607460526, 36.607745562588434, 35.75584645424027, 35.66699517635965]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1024513182802895, 2.6484538543929936, 2.02062016138012, 2.135100886134569, 1.6887565025251416, 1.7285015908711994]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8612962990795268, 3.6025536623602648, 2.432647651407649, 2.6524950389108426, 1.849947842510062, 1.9617669703658294]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4972655331041118, 1.9606510664786283, 1.5347961116723425, 1.740493514569969, 1.3768262281025458, 1.4539131938080494]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9622490033039024, 2.5309651401983633, 1.9644875729107703, 2.1554223653347817, 1.5040344945039001, 1.6800535950963686]}}