{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:00.514542", "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": "2024-Jan-27_to_2024-Jan-29_1.5_26.5"}, "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": 2024010001901}, "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": "January 27 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 63533.44568168679}, "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"]}, "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": 26.5}, "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": 1.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "1.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 4.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 27.0], [0.47, 27.53], [1.0, 27.75], [1.3, 27.63], [1.35, 27.75], [1.25, 28.0], [1.47, 28.53], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.75, 28.0], [3.65, 27.75], [3.75, 27.5], [3.65, 27.25], [3.68, 27.18], [3.75, 27.15], [4.0, 27.25], [4.25, 27.15], [4.5, 27.25], [5.03, 27.03], [5.25, 26.5], [5.15, 26.25], [5.25, 26.0], [5.03, 25.47], [4.68, 25.32], [4.65, 25.25], [4.75, 25.0], [4.53, 24.47], [4.0, 24.25], [3.75, 24.35], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.47, 25.47], [2.32, 25.82], [2.25, 25.85], [2.0, 25.75], [1.75, 25.85], [1.5, 25.75], [0.97, 25.97], [0.82, 26.32], [0.47, 26.47], [0.25, 27.0]]]]}, "2024-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 27.0], [0.47, 27.53], [1.0, 27.75], [1.3, 27.63], [1.35, 27.75], [1.25, 28.0], [1.47, 28.53], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.75, 28.0], [3.65, 27.75], [3.75, 27.5], [3.65, 27.25], [3.68, 27.18], [3.75, 27.15], [4.0, 27.25], [4.25, 27.15], [4.5, 27.25], [5.03, 27.03], [5.25, 26.5], [5.15, 26.25], [5.25, 26.0], [5.03, 25.47], [4.68, 25.32], [4.65, 25.25], [4.75, 25.0], [4.53, 24.47], [4.0, 24.25], [3.75, 24.35], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.47, 25.47], [2.32, 25.82], [2.25, 25.85], [2.0, 25.75], [1.75, 25.85], [1.5, 25.75], [0.97, 25.97], [0.82, 26.32], [0.47, 26.47], [0.25, 27.0]]]]}, "2024-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 27.0], [0.47, 27.53], [1.0, 27.75], [1.3, 27.63], [1.35, 27.75], [1.25, 28.0], [1.47, 28.53], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.75, 28.0], [3.65, 27.75], [3.75, 27.5], [3.65, 27.25], [3.68, 27.18], [3.75, 27.15], [4.0, 27.25], [4.25, 27.15], [4.5, 27.25], [5.03, 27.03], [5.25, 26.5], [5.15, 26.25], [5.25, 26.0], [5.03, 25.47], [4.68, 25.32], [4.65, 25.25], [4.75, 25.0], [4.53, 24.47], [4.0, 24.25], [3.75, 24.35], [3.5, 24.25], [2.97, 24.47], [2.75, 25.0], [2.85, 25.25], [2.82, 25.32], [2.47, 25.47], [2.32, 25.82], [2.25, 25.85], [2.0, 25.75], [1.75, 25.85], [1.5, 25.75], [0.97, 25.97], [0.82, 26.32], [0.47, 26.47], [0.25, 27.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.8609767976067815}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.832167163652478}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.442304477390906, 20.29150687529443, 19.77247693235506]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.97102748499526, 21.945714057597684, 21.93397738487124]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.543453477002377, 5.27654725971392, 4.67650075424114]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.445879540786166, 5.8609767976067815, 5.517276940654256]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5660142602686122, 1.769871890420433, 1.5342846030718729]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7357086803667707, 1.937202836723907, 1.8730736975166504]}}