{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:18.480195", "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": "2017-Feb-11_to_2017-Feb-15_46.0_5.0"}, "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": 2017020001567}, "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 11 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 15 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 70863.17526232816}, "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": ["Ethiopia", "Somalia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-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": 5.0}, "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": 46.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 4.5], [42.97, 5.03], [43.5, 5.25], [43.75, 5.15], [44.0, 5.25], [44.43, 5.07], [44.25, 5.5], [44.47, 6.03], [45.0, 6.25], [45.53, 6.03], [45.68, 5.68], [45.75, 5.65], [45.82, 5.68], [45.97, 6.03], [46.5, 6.25], [46.75, 6.15], [47.0, 6.25], [47.53, 6.03], [47.75, 5.5], [47.65, 5.25], [47.75, 5.0], [47.65, 4.75], [47.75, 4.5], [47.53, 3.97], [47.0, 3.75], [46.75, 3.85], [46.68, 3.82], [46.65, 3.75], [46.75, 3.5], [46.53, 2.97], [46.0, 2.75], [45.47, 2.97], [45.32, 3.32], [45.25, 3.35], [45.18, 3.32], [45.03, 2.97], [44.5, 2.75], [43.97, 2.97], [43.82, 3.32], [43.47, 3.47], [43.32, 3.82], [42.97, 3.97], [42.75, 4.5]], [[44.82, 4.68], [44.85, 4.75], [44.82, 4.82], [44.57, 4.93], [44.68, 4.68], [44.75, 4.65], [44.82, 4.68]]]]}, "2017-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 4.5], [42.97, 5.03], [43.5, 5.25], [43.75, 5.15], [44.0, 5.25], [44.43, 5.07], [44.25, 5.5], [44.47, 6.03], [45.0, 6.25], [45.53, 6.03], [45.68, 5.68], [45.75, 5.65], [45.82, 5.68], [45.97, 6.03], [46.5, 6.25], [46.75, 6.15], [47.0, 6.25], [47.53, 6.03], [47.75, 5.5], [47.65, 5.25], [47.75, 5.0], [47.65, 4.75], [47.75, 4.5], [47.53, 3.97], [47.0, 3.75], [46.75, 3.85], [46.68, 3.82], [46.65, 3.75], [46.75, 3.5], [46.53, 2.97], [46.0, 2.75], [45.47, 2.97], [45.32, 3.32], [45.25, 3.35], [45.18, 3.32], [45.03, 2.97], [44.5, 2.75], [43.97, 2.97], [43.82, 3.32], [43.47, 3.47], [43.32, 3.82], [42.97, 3.97], [42.75, 4.5]], [[44.82, 4.68], [44.85, 4.75], [44.82, 4.82], [44.57, 4.93], [44.68, 4.68], [44.75, 4.65], [44.82, 4.68]]]]}, "2017-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 4.5], [42.97, 5.03], [43.5, 5.25], [43.75, 5.15], [44.0, 5.25], [44.43, 5.07], [44.25, 5.5], [44.47, 6.03], [45.0, 6.25], [45.53, 6.03], [45.68, 5.68], [45.75, 5.65], [45.82, 5.68], [45.97, 6.03], [46.5, 6.25], [46.75, 6.15], [47.0, 6.25], [47.5, 6.04], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.5, 3.75], [47.25, 3.85], [47.0, 3.75], [46.75, 3.85], [46.68, 3.82], [46.65, 3.75], [46.75, 3.5], [46.53, 2.97], [46.0, 2.75], [45.47, 2.97], [45.32, 3.32], [45.25, 3.35], [45.18, 3.32], [45.03, 2.97], [44.5, 2.75], [43.97, 2.97], [43.82, 3.32], [43.47, 3.47], [43.32, 3.82], [42.97, 3.97], [42.75, 4.5]], [[44.82, 4.68], [44.85, 4.75], [44.82, 4.82], [44.57, 4.93], [44.68, 4.68], [44.75, 4.65], [44.82, 4.68]]]]}, "2017-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 4.5], [42.97, 5.03], [43.5, 5.25], [43.75, 5.15], [44.0, 5.25], [44.53, 5.03], [44.75, 4.5], [44.53, 3.97], [44.0, 3.75], [43.75, 3.85], [43.5, 3.75], [42.97, 3.97], [42.75, 4.5]]], [[[44.97, 5.53], [45.5, 5.75], [45.75, 5.65], [45.82, 5.68], [45.97, 6.03], [46.5, 6.25], [46.75, 6.15], [47.0, 6.25], [47.5, 6.04], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.5, 3.75], [46.97, 3.97], [46.75, 4.5], [46.88, 4.8], [46.75, 4.85], [46.68, 4.82], [46.54, 4.5], [46.75, 4.0], [46.53, 3.47], [46.0, 3.25], [45.47, 3.47], [45.25, 4.0], [45.38, 4.3], [44.97, 4.47], [44.75, 5.0], [44.97, 5.53]]]]}, "2017-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.25, 5.5], [47.47, 6.03], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.5, 3.75], [46.97, 3.97], [46.75, 4.5], [46.97, 5.03], [47.32, 5.18], [47.35, 5.25], [47.25, 5.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7384548634245789}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1996049101363837}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.613133084049025, 28.583608255008016, 28.311731526874837, 27.83916910586248, 26.654386490241166]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.035662797060297, 30.000008103374, 29.576882882724362, 29.6337246924665, 27.184590069814078]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3238103109921666, 1.227071492331285, 1.13903578954004, 1.1093874295902026, 0.9535465495243898]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7384548634245789, 1.6155263392194001, 1.315286363617588, 1.3486588196819866, 1.044912310550842]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7185334796737881, 1.6358150574239485, 1.5910683551892457, 1.5146687495687172, 1.5857284178449549]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.91052880274918, 1.9137096273534397, 1.928293273658612, 1.607796327187999, 1.6031596235892893]}}