{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:16.494185", "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-02_to_2017-Feb-07_45.5_4.0"}, "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": 2017020001064}, "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 02 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 07 2017"}, "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": 163241.02576919837}, "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", "Kenya", "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": 4.0}, "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": 45.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 39.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.47, 6.03], [44.82, 6.18], [44.97, 6.53], [45.32, 6.68], [45.47, 7.03], [45.82, 7.18], [45.97, 7.53], [46.32, 7.68], [46.47, 8.03], [47.0, 8.25], [47.25, 8.15], [47.5, 8.25], [47.75, 8.15], [48.0, 8.25], [48.53, 8.03], [48.68, 7.68], [49.03, 7.53], [49.25, 7.0], [49.03, 6.47], [48.5, 6.25], [48.25, 6.35], [48.18, 6.32], [48.03, 5.97], [47.5, 5.75], [47.25, 5.85], [47.18, 5.82], [47.15, 5.75], [47.25, 5.5], [47.04, 5.0], [47.18, 4.68], [47.53, 4.53], [47.75, 4.0], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.0, 2.25], [45.47, 2.47], [45.25, 3.0], [45.38, 3.3], [44.97, 3.47], [44.75, 4.0], [44.85, 4.25], [44.82, 4.32], [44.47, 4.47], [44.25, 5.0], [44.35, 5.25], [44.25, 5.5], [44.47, 6.03]]]]}, "2017-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 1.97], [39.25, 2.5], [39.47, 3.03], [40.0, 3.25], [40.53, 3.03], [40.75, 2.5], [40.53, 1.97], [40.0, 1.75], [39.47, 1.97]]], [[[42.25, 3.0], [42.47, 3.53], [43.0, 3.75], [43.25, 3.65], [43.5, 3.75], [43.75, 3.65], [43.88, 3.7], [43.75, 4.0], [43.97, 4.53], [44.32, 4.68], [44.35, 4.75], [44.25, 5.0], [44.35, 5.25], [44.25, 5.5], [44.47, 6.03], [44.82, 6.18], [44.97, 6.53], [45.32, 6.68], [45.47, 7.03], [45.82, 7.18], [45.97, 7.53], [46.32, 7.68], [46.47, 8.03], [47.0, 8.25], [47.25, 8.15], [47.5, 8.25], [47.75, 8.15], [48.0, 8.25], [48.53, 8.03], [48.68, 7.68], [49.03, 7.53], [49.25, 7.0], [49.03, 6.47], [48.5, 6.25], [48.25, 6.35], [48.18, 6.32], [48.03, 5.97], [47.5, 5.75], [47.25, 5.85], [47.18, 5.82], [47.15, 5.75], [47.25, 5.5], [47.04, 5.0], [47.18, 4.68], [47.53, 4.53], [47.75, 4.0], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.0, 2.25], [45.7, 2.38], [45.53, 1.97], [45.0, 1.75], [44.75, 1.85], [44.5, 1.75], [44.25, 1.85], [44.0, 1.75], [43.47, 1.97], [43.32, 2.32], [43.25, 2.35], [43.0, 2.25], [42.47, 2.47], [42.25, 3.0]]]]}, "2017-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 1.97], [39.25, 2.5], [39.47, 3.03], [40.0, 3.25], [40.53, 3.03], [40.75, 2.5], [40.53, 1.97], [40.0, 1.75], [39.47, 1.97]]], [[[42.75, 3.65], [43.0, 3.75], [43.25, 3.65], [43.5, 3.75], [43.75, 3.65], [43.88, 3.7], [43.75, 4.0], [43.97, 4.53], [44.32, 4.68], [44.35, 4.75], [44.25, 5.0], [44.35, 5.25], [44.25, 5.5], [44.47, 6.03], [44.82, 6.18], [44.97, 6.53], [45.32, 6.68], [45.47, 7.03], [45.82, 7.18], [45.97, 7.53], [46.32, 7.68], [46.47, 8.03], [47.0, 8.25], [47.25, 8.15], [47.5, 8.25], [47.75, 8.15], [48.0, 8.25], [48.53, 8.03], [48.68, 7.68], [49.03, 7.53], [49.25, 7.0], [49.03, 6.47], [48.5, 6.25], [48.25, 6.35], [48.18, 6.32], [48.03, 5.97], [47.5, 5.75], [47.25, 5.85], [47.18, 5.82], [47.15, 5.75], [47.25, 5.5], [47.04, 5.0], [47.18, 4.68], [47.53, 4.53], [47.75, 4.0], [47.53, 3.47], [47.18, 3.32], [47.03, 2.97], [46.68, 2.82], [46.53, 2.47], [46.0, 2.25], [45.7, 2.38], [45.53, 1.97], [45.0, 1.75], [44.75, 1.85], [44.5, 1.75], [44.25, 1.85], [44.0, 1.75], [43.47, 1.97], [43.32, 2.32], [43.25, 2.35], [43.18, 2.32], [43.03, 1.97], [42.5, 1.75], [42.25, 1.85], [42.0, 1.75], [41.47, 1.97], [41.25, 2.5], [41.47, 3.03], [41.82, 3.18], [41.97, 3.53], [42.5, 3.75], [42.75, 3.65]]]]}, "2017-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 3.53], [40.0, 3.75], [40.25, 3.65], [40.5, 3.75], [40.75, 3.65], [41.0, 3.75], [41.25, 3.65], [41.5, 3.75], [41.75, 3.65], [42.0, 3.75], [42.25, 3.65], [42.5, 3.75], [42.75, 3.65], [43.0, 3.75], [43.25, 3.65], [43.5, 3.75], [43.75, 3.65], [43.88, 3.7], [43.75, 4.0], [43.97, 4.53], [44.32, 4.68], [44.47, 5.03], [45.0, 5.25], [45.53, 5.03], [45.68, 4.68], [45.75, 4.65], [46.0, 4.75], [46.25, 4.65], [46.5, 4.75], [47.03, 4.53], [47.25, 4.0], [47.03, 3.47], [46.5, 3.25], [46.25, 3.35], [46.18, 3.32], [46.03, 2.97], [45.68, 2.82], [45.65, 2.75], [45.75, 2.5], [45.53, 1.97], [45.0, 1.75], [44.75, 1.85], [44.5, 1.75], [44.25, 1.85], [44.0, 1.75], [43.47, 1.97], [43.32, 2.32], [43.25, 2.35], [43.18, 2.32], [43.03, 1.97], [42.5, 1.75], [42.25, 1.85], [42.0, 1.75], [41.47, 1.97], [41.32, 2.32], [41.25, 2.35], [41.0, 2.25], [40.75, 2.35], [40.68, 2.32], [40.53, 1.97], [40.0, 1.75], [39.47, 1.97], [39.25, 2.5], [39.35, 2.75], [39.25, 3.0], [39.47, 3.53]]]]}, "2017-02-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 3.53], [40.0, 3.75], [40.25, 3.65], [40.5, 3.75], [40.75, 3.65], [41.0, 3.75], [41.25, 3.65], [41.5, 3.75], [41.75, 3.65], [42.0, 3.75], [42.25, 3.65], [42.5, 3.75], [42.75, 3.65], [43.0, 3.75], [43.53, 3.53], [43.75, 3.0], [43.53, 2.47], [43.18, 2.32], [43.03, 1.97], [42.5, 1.75], [42.25, 1.85], [42.0, 1.75], [41.47, 1.97], [41.32, 2.32], [41.25, 2.35], [41.0, 2.25], [40.75, 2.35], [40.68, 2.32], [40.53, 1.97], [40.0, 1.75], [39.47, 1.97], [39.25, 2.5], [39.35, 2.75], [39.25, 3.0], [39.47, 3.53]]]]}, "2017-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 2.47], [39.25, 3.0], [39.47, 3.53], [40.0, 3.75], [40.25, 3.65], [40.5, 3.75], [40.75, 3.65], [41.0, 3.75], [41.25, 3.65], [41.5, 3.75], [41.75, 3.65], [42.0, 3.75], [42.53, 3.53], [42.75, 3.0], [42.53, 2.47], [42.0, 2.25], [41.75, 2.35], [41.5, 2.25], [41.25, 2.35], [41.0, 2.25], [40.75, 2.35], [40.5, 2.25], [40.25, 2.35], [40.0, 2.25], [39.47, 2.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6438667853330458}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4056736975282087}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.55736367529522, 28.75638610094137, 28.35891226111937, 29.859108981932195, 30.569674115074235, 30.015641315221103]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.482877911486128, 30.654340299235344, 32.00860155884533, 32.26058424980107, 31.97205549781694, 30.413739683571862]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.271173359993658, 1.8084848837362946, 1.1931699882750522, 1.3150244402824, 1.302673440221247, 1.259757389029096]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8108109755423243, 2.6438667853330458, 1.5701616840017891, 1.8583933919711626, 1.4813644309161305, 1.3934257434736423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.72706585811986, 2.4864044087646695, 1.601000897995097, 1.6437271835863132, 1.4426709664348738, 1.3989892179618395]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2584431772829867, 3.123115526382068, 2.266839125544079, 2.1386449997867656, 1.7665983901443763, 1.4864358754472986]}}