{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:49.745077", "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": "2011-Feb-10_to_2011-Feb-13_3.5_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": 2011020001887}, "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 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 2011"}, "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": 71153.84320350164}, "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", "Niger"]}, "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": 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": 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": 2.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 6.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.5, 16.25], [4.03, 16.03], [4.25, 15.5], [4.03, 14.97], [3.68, 14.82], [3.53, 14.47], [3.0, 14.25], [2.47, 14.47], [2.25, 15.0], [2.47, 15.53], [2.82, 15.68], [2.97, 16.03], [3.5, 16.25]]]]}, "2011-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 16.53], [2.82, 16.68], [2.85, 16.75], [2.75, 17.0], [2.97, 17.53], [3.32, 17.68], [3.47, 18.03], [4.0, 18.25], [4.3, 18.13], [4.47, 18.53], [5.0, 18.75], [5.53, 18.53], [5.68, 18.18], [5.75, 18.15], [6.0, 18.25], [6.25, 18.15], [6.5, 18.25], [7.03, 18.03], [7.25, 17.5], [7.03, 16.97], [6.68, 16.82], [6.53, 16.47], [6.18, 16.32], [6.15, 16.25], [6.25, 16.0], [6.03, 15.47], [5.68, 15.32], [5.65, 15.25], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.47, 14.47], [4.32, 14.82], [4.25, 14.85], [4.0, 14.75], [3.75, 14.85], [3.68, 14.82], [3.53, 14.47], [3.0, 14.25], [2.47, 14.47], [2.25, 15.0], [2.46, 15.5], [2.25, 16.0], [2.47, 16.53]]]]}, "2011-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 16.53], [2.82, 16.68], [2.85, 16.75], [2.75, 17.0], [2.97, 17.53], [3.32, 17.68], [3.47, 18.03], [4.0, 18.25], [4.3, 18.13], [4.47, 18.53], [5.0, 18.75], [5.53, 18.53], [5.68, 18.18], [5.75, 18.15], [6.0, 18.25], [6.25, 18.15], [6.5, 18.25], [7.03, 18.03], [7.25, 17.5], [7.03, 16.97], [6.68, 16.82], [6.53, 16.47], [6.18, 16.32], [6.15, 16.25], [6.25, 16.0], [6.03, 15.47], [5.68, 15.32], [5.65, 15.25], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.47, 14.47], [4.32, 14.82], [4.25, 14.85], [4.0, 14.75], [3.75, 14.85], [3.68, 14.82], [3.53, 14.47], [3.0, 14.25], [2.47, 14.47], [2.25, 15.0], [2.46, 15.5], [2.25, 16.0], [2.47, 16.53]]]]}, "2011-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.47, 16.53], [2.82, 16.68], [2.85, 16.75], [2.75, 17.0], [2.97, 17.53], [3.32, 17.68], [3.47, 18.03], [4.0, 18.25], [4.3, 18.13], [4.47, 18.53], [5.0, 18.75], [5.53, 18.53], [5.68, 18.18], [5.75, 18.15], [6.0, 18.25], [6.25, 18.15], [6.5, 18.25], [7.03, 18.03], [7.25, 17.5], [7.03, 16.97], [6.68, 16.82], [6.53, 16.47], [6.18, 16.32], [6.15, 16.25], [6.25, 16.0], [6.03, 15.47], [5.68, 15.32], [5.65, 15.25], [5.75, 15.0], [5.53, 14.47], [5.0, 14.25], [4.47, 14.47], [4.32, 14.82], [4.25, 14.85], [4.0, 14.75], [3.75, 14.85], [3.68, 14.82], [3.53, 14.47], [3.0, 14.25], [2.47, 14.47], [2.25, 15.0], [2.46, 15.5], [2.25, 16.0], [2.47, 16.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.681443835651862}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.394807140093212}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.137745777676912, 28.012114865976457, 28.696042164889263, 29.18727641542813]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.14501045219714, 29.266131796889283, 30.492135208977686, 30.685056296462108]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8055637198059458, 3.9631165008882214, 4.475485908018659, 4.794922629730027]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.8613005640283404, 4.475902949493786, 5.024587284488689, 5.681443835651862]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4439829242025146, 1.420401977820518, 1.5976202345478603, 1.6798169421120261]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.457280570666266, 1.6330583796107891, 1.8286140508947177, 1.9628218045638448]}}