{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:20.730975", "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": "2015-Jun-28_to_2015-Jul-01_13.5_12.5"}, "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": 2015060002844}, "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": "June 28 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 01 2015"}, "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": 90336.59543120267}, "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": ["Chad", "Niger", "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": 12.5}, "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": 13.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.5\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": 14.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.97, 14.03], [12.5, 14.25], [13.03, 14.03], [13.18, 13.68], [13.25, 13.65], [13.32, 13.68], [13.47, 14.03], [14.0, 14.25], [14.53, 14.03], [14.75, 13.5], [14.65, 13.25], [14.75, 13.0], [14.53, 12.47], [14.18, 12.32], [14.15, 12.25], [14.25, 12.0], [14.03, 11.47], [13.5, 11.25], [12.97, 11.47], [12.75, 12.0], [12.85, 12.25], [12.82, 12.32], [12.7, 12.38], [12.53, 11.97], [12.0, 11.75], [11.47, 11.97], [11.25, 12.5], [11.47, 13.03], [11.88, 13.2], [11.75, 13.5], [11.97, 14.03]]]]}, "2015-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 12.97], [8.75, 13.5], [8.97, 14.03], [9.5, 14.25], [9.75, 14.15], [10.0, 14.25], [10.25, 14.15], [10.32, 14.18], [10.47, 14.53], [11.0, 14.75], [11.25, 14.65], [11.32, 14.68], [11.47, 15.03], [12.0, 15.25], [12.53, 15.03], [12.75, 14.5], [12.65, 14.25], [12.68, 14.18], [12.75, 14.15], [13.0, 14.25], [13.5, 14.04], [14.0, 14.25], [14.53, 14.03], [14.75, 13.5], [14.65, 13.25], [14.75, 13.0], [14.53, 12.47], [14.18, 12.32], [14.15, 12.25], [14.25, 12.0], [14.03, 11.47], [13.5, 11.25], [13.0, 11.46], [12.68, 11.32], [12.53, 10.97], [12.0, 10.75], [11.47, 10.97], [11.32, 11.32], [10.97, 11.47], [10.75, 12.0], [10.85, 12.25], [10.82, 12.32], [10.47, 12.47], [10.32, 12.82], [10.25, 12.85], [10.0, 12.75], [9.75, 12.85], [9.5, 12.75], [8.97, 12.97]]]]}, "2015-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 12.97], [8.75, 13.5], [8.97, 14.03], [9.5, 14.25], [9.75, 14.15], [10.0, 14.25], [10.25, 14.15], [10.32, 14.18], [10.47, 14.53], [11.0, 14.75], [11.25, 14.65], [11.32, 14.68], [11.47, 15.03], [12.0, 15.25], [12.53, 15.03], [12.75, 14.5], [12.65, 14.25], [12.68, 14.18], [12.75, 14.15], [13.0, 14.25], [13.5, 14.04], [14.0, 14.25], [14.53, 14.03], [14.75, 13.5], [14.65, 13.25], [14.75, 13.0], [14.53, 12.47], [14.18, 12.32], [14.15, 12.25], [14.25, 12.0], [14.03, 11.47], [13.5, 11.25], [13.0, 11.46], [12.68, 11.32], [12.53, 10.97], [12.0, 10.75], [11.47, 10.97], [11.32, 11.32], [10.97, 11.47], [10.75, 12.0], [10.85, 12.25], [10.82, 12.32], [10.47, 12.47], [10.32, 12.82], [10.25, 12.85], [10.0, 12.75], [9.75, 12.85], [9.5, 12.75], [8.97, 12.97]]]]}, "2015-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 12.97], [8.75, 13.5], [8.97, 14.03], [9.5, 14.25], [9.75, 14.15], [10.0, 14.25], [10.25, 14.15], [10.32, 14.18], [10.47, 14.53], [11.0, 14.75], [11.25, 14.65], [11.32, 14.68], [11.47, 15.03], [12.0, 15.25], [12.53, 15.03], [12.75, 14.5], [12.65, 14.25], [12.68, 14.18], [12.75, 14.15], [13.0, 14.25], [13.53, 14.03], [13.68, 13.68], [14.03, 13.53], [14.25, 13.0], [14.15, 12.75], [14.25, 12.5], [14.03, 11.97], [13.5, 11.75], [13.25, 11.85], [13.18, 11.82], [13.03, 11.47], [12.68, 11.32], [12.53, 10.97], [12.0, 10.75], [11.47, 10.97], [11.32, 11.32], [10.97, 11.47], [10.75, 12.0], [10.85, 12.25], [10.82, 12.32], [10.47, 12.47], [10.32, 12.82], [10.25, 12.85], [10.0, 12.75], [9.75, 12.85], [9.5, 12.75], [8.97, 12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.2872935607488216}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.413916659653775}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.40657510977337, 33.41927422968473, 33.69538607679601, 33.33556278053334]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.953530420551374, 35.241582656019204, 35.37887187535915, 34.87595078528176]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.224468532602664, 2.3314575638966972, 2.6389112519378157, 2.3116766641204425]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.514144163905655, 3.0279801254413314, 3.2872935607488216, 2.853461129709217]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3716144208251904, 1.5375414596851102, 1.7767412842233747, 1.5532711438297864]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5684739824689118, 2.003284916352575, 2.063163275629877, 1.8188886548939047]}}