{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:21:06.404665", "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": "2019-Dec-12_to_2019-Dec-16_356.0_31.0"}, "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": 2019120001613}, "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": "December 12 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 16 2019"}, "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": 208985.13181281253}, "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": ["Algeria", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "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": 31.0}, "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": 356.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "356.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 354.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.53, 31.53], [-5.0, 31.75], [-4.75, 31.65], [-4.5, 31.75], [-4.25, 31.65], [-4.18, 31.68], [-4.15, 31.75], [-4.25, 32.0], [-4.03, 32.53], [-3.5, 32.75], [-2.97, 32.53], [-2.8, 32.12], [-2.5, 32.25], [-2.25, 32.15], [-2.0, 32.25], [-1.75, 32.15], [-1.5, 32.25], [-0.97, 32.03], [-0.75, 31.5], [-0.97, 30.97], [-1.5, 30.75], [-1.75, 30.85], [-2.0, 30.75], [-2.25, 30.85], [-2.32, 30.82], [-2.35, 30.75], [-2.25, 30.5], [-2.47, 29.97], [-3.0, 29.75], [-3.25, 29.85], [-3.5, 29.75], [-3.75, 29.85], [-4.0, 29.75], [-4.25, 29.85], [-4.32, 29.82], [-4.47, 29.47], [-5.0, 29.25], [-5.53, 29.47], [-5.75, 30.0], [-5.54, 30.5], [-5.75, 31.0], [-5.53, 31.53]]]]}, "2019-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.75, 30.0], [-5.65, 30.25], [-5.75, 30.5], [-5.65, 30.75], [-5.75, 31.0], [-5.54, 31.5], [-5.75, 32.0], [-5.53, 32.53], [-5.18, 32.68], [-5.03, 33.03], [-4.68, 33.18], [-4.53, 33.53], [-4.0, 33.75], [-3.47, 33.53], [-3.32, 33.18], [-3.25, 33.15], [-3.0, 33.25], [-2.75, 33.15], [-2.5, 33.25], [-2.25, 33.15], [-2.0, 33.25], [-1.47, 33.03], [-1.32, 32.68], [-1.25, 32.65], [-1.0, 32.75], [-0.75, 32.65], [-0.68, 32.68], [-0.53, 33.03], [0.0, 33.25], [0.53, 33.03], [0.75, 32.5], [0.53, 31.97], [0.18, 31.82], [0.03, 31.47], [-0.32, 31.32], [-0.47, 30.97], [-0.82, 30.82], [-0.85, 30.75], [-0.75, 30.5], [-0.97, 29.97], [-1.5, 29.75], [-1.75, 29.85], [-1.82, 29.82], [-1.97, 29.47], [-2.5, 29.25], [-2.75, 29.35], [-3.0, 29.25], [-3.25, 29.35], [-3.32, 29.32], [-3.47, 28.97], [-4.0, 28.75], [-4.25, 28.85], [-4.32, 28.82], [-4.47, 28.47], [-5.0, 28.25], [-5.25, 28.35], [-5.5, 28.25], [-6.03, 28.47], [-6.25, 29.0], [-6.03, 29.53], [-5.68, 29.68], [-5.65, 29.75], [-5.75, 30.0]]]]}, "2019-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.15, 29.75], [-6.25, 30.0], [-6.03, 30.53], [-5.68, 30.68], [-5.65, 30.75], [-5.75, 31.0], [-5.65, 31.25], [-5.75, 31.5], [-5.65, 31.75], [-5.75, 32.0], [-5.53, 32.53], [-5.18, 32.68], [-5.15, 32.75], [-5.25, 33.0], [-5.03, 33.53], [-4.68, 33.68], [-4.53, 34.03], [-4.0, 34.25], [-3.7, 34.12], [-3.53, 34.53], [-3.0, 34.75], [-2.75, 34.65], [-2.5, 34.75], [-1.97, 34.53], [-1.75, 34.0], [-1.85, 33.75], [-1.82, 33.68], [-1.75, 33.65], [-1.5, 33.75], [-1.25, 33.65], [-1.0, 33.75], [-0.47, 33.53], [-0.3, 33.12], [0.0, 33.25], [0.53, 33.03], [0.75, 32.5], [0.53, 31.97], [0.18, 31.82], [0.03, 31.47], [-0.32, 31.32], [-0.47, 30.97], [-0.82, 30.82], [-0.85, 30.75], [-0.75, 30.5], [-0.85, 30.25], [-0.75, 30.0], [-0.97, 29.47], [-1.5, 29.25], [-1.75, 29.35], [-1.82, 29.32], [-1.97, 28.97], [-2.5, 28.75], [-2.75, 28.85], [-2.82, 28.82], [-2.85, 28.75], [-2.75, 28.5], [-2.97, 27.97], [-3.5, 27.75], [-3.75, 27.85], [-4.0, 27.75], [-4.25, 27.85], [-4.5, 27.75], [-4.75, 27.85], [-5.0, 27.75], [-5.53, 27.97], [-5.68, 28.32], [-6.03, 28.47], [-6.25, 29.0], [-6.15, 29.25], [-6.25, 29.5], [-6.15, 29.75]]]]}, "2019-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.15, 29.75], [-6.25, 30.0], [-6.03, 30.53], [-5.68, 30.68], [-5.65, 30.75], [-5.75, 31.0], [-5.65, 31.25], [-5.75, 31.5], [-5.65, 31.75], [-5.75, 32.0], [-5.53, 32.53], [-5.18, 32.68], [-5.15, 32.75], [-5.25, 33.0], [-5.03, 33.53], [-4.68, 33.68], [-4.53, 34.03], [-4.0, 34.25], [-3.7, 34.12], [-3.53, 34.53], [-3.0, 34.75], [-2.75, 34.65], [-2.5, 34.75], [-1.97, 34.53], [-1.75, 34.0], [-1.85, 33.75], [-1.82, 33.68], [-1.75, 33.65], [-1.5, 33.75], [-1.25, 33.65], [-1.0, 33.75], [-0.47, 33.53], [-0.3, 33.12], [0.0, 33.25], [0.53, 33.03], [0.75, 32.5], [0.53, 31.97], [0.18, 31.82], [0.03, 31.47], [-0.32, 31.32], [-0.47, 30.97], [-0.82, 30.82], [-0.85, 30.75], [-0.75, 30.5], [-0.85, 30.25], [-0.75, 30.0], [-0.97, 29.47], [-1.5, 29.25], [-1.75, 29.35], [-1.82, 29.32], [-1.97, 28.97], [-2.5, 28.75], [-2.75, 28.85], [-2.82, 28.82], [-2.85, 28.75], [-2.75, 28.5], [-2.97, 27.97], [-3.5, 27.75], [-3.75, 27.85], [-4.0, 27.75], [-4.25, 27.85], [-4.5, 27.75], [-4.75, 27.85], [-5.0, 27.75], [-5.53, 27.97], [-5.68, 28.32], [-6.03, 28.47], [-6.25, 29.0], [-6.15, 29.25], [-6.25, 29.5], [-6.15, 29.75]]]]}, "2019-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.15, 29.75], [-6.25, 30.0], [-6.03, 30.53], [-5.68, 30.68], [-5.65, 30.75], [-5.75, 31.0], [-5.65, 31.25], [-5.75, 31.5], [-5.53, 32.03], [-5.0, 32.25], [-4.75, 32.15], [-4.68, 32.18], [-4.62, 32.3], [-5.03, 32.47], [-5.25, 33.0], [-5.03, 33.53], [-4.68, 33.68], [-4.53, 34.03], [-4.0, 34.25], [-3.7, 34.12], [-3.53, 34.53], [-3.0, 34.75], [-2.75, 34.65], [-2.5, 34.75], [-1.97, 34.53], [-1.75, 34.0], [-1.85, 33.75], [-1.82, 33.68], [-1.75, 33.65], [-1.5, 33.75], [-1.25, 33.65], [-1.0, 33.75], [-0.47, 33.53], [-0.25, 33.0], [-0.47, 32.47], [-1.0, 32.25], [-1.25, 32.35], [-1.32, 32.32], [-1.35, 32.25], [-1.25, 32.0], [-1.37, 31.7], [-0.97, 31.53], [-0.75, 31.0], [-0.85, 30.75], [-0.75, 30.5], [-0.85, 30.25], [-0.75, 30.0], [-0.97, 29.47], [-1.5, 29.25], [-1.75, 29.35], [-1.82, 29.32], [-1.97, 28.97], [-2.5, 28.75], [-2.75, 28.85], [-2.82, 28.82], [-2.85, 28.75], [-2.75, 28.5], [-2.97, 27.97], [-3.5, 27.75], [-3.75, 27.85], [-4.0, 27.75], [-4.25, 27.85], [-4.5, 27.75], [-4.75, 27.85], [-5.0, 27.75], [-5.53, 27.97], [-5.68, 28.32], [-6.03, 28.47], [-6.25, 29.0], [-6.15, 29.25], [-6.25, 29.5], [-6.15, 29.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.461829647658135}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.022542384688947}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.844430466137737, 14.408451765560812, 15.140469533322005, 15.513411902019868, 15.204996073744326]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.9045023443054, 16.518330851075063, 17.78304746344122, 18.193147266500432, 17.717185752157434]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.908459712804381, 3.19853540682612, 4.202900917230408, 4.57417229652686, 4.03570917951942]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.4717864610894935, 4.496977819590427, 5.889416490943859, 6.461829647658135, 5.291754772466163]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4132564016493776, 1.571649613529678, 2.0106913103238706, 2.1011069491871512, 1.783218581245702]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.57029820132074, 2.083118643987713, 2.869206881625908, 2.7299408436030204, 2.2657507427333887]}}