{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:21.373369", "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-26_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": 2024010001964}, "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 26 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": 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": 140065.83241135662}, "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"]}, "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": -0.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 4.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[1.0, 25.75], [0.75, 25.85], [0.5, 25.75], [-0.03, 25.97], [-0.18, 26.32], [-0.53, 26.47], [-0.68, 26.82], [-1.03, 26.97], [-1.25, 27.5], [-1.15, 27.75], [-1.25, 28.0], [-1.15, 28.25], [-1.25, 28.5], [-1.03, 29.03], [-0.68, 29.18], [-0.65, 29.25], [-0.75, 29.5], [-0.53, 30.03], [0.0, 30.25], [0.25, 30.15], [0.32, 30.18], [0.47, 30.53], [1.0, 30.75], [1.53, 30.53], [1.75, 30.0], [1.65, 29.75], [1.75, 29.5], [1.54, 29.0], [1.68, 28.68], [1.75, 28.65], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.68, 28.18], [4.03, 28.03], [4.25, 27.5], [4.15, 27.25], [4.18, 27.18], [4.53, 27.03], [4.68, 26.68], [5.03, 26.53], [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], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.47, 25.47], [1.32, 25.82], [1.25, 25.85], [1.0, 25.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.97, 27.03], [1.5, 27.25], [2.03, 27.03], [2.25, 26.5], [2.03, 25.97], [1.5, 25.75], [0.97, 25.97], [0.75, 26.5], [0.97, 27.03]]]]}, "2024-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 28.0], [-1.15, 28.25], [-1.25, 28.5], [-1.03, 29.03], [-0.68, 29.18], [-0.65, 29.25], [-0.75, 29.5], [-0.53, 30.03], [0.0, 30.25], [0.25, 30.15], [0.32, 30.18], [0.47, 30.53], [1.0, 30.75], [1.53, 30.53], [1.75, 30.0], [1.65, 29.75], [1.75, 29.5], [1.54, 29.0], [1.68, 28.68], [1.75, 28.65], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.68, 28.18], [4.03, 28.03], [4.25, 27.5], [4.15, 27.25], [4.18, 27.18], [4.53, 27.03], [4.68, 26.68], [5.03, 26.53], [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], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.47, 25.47], [1.32, 25.82], [1.25, 25.85], [1.0, 25.75], [0.75, 25.85], [0.5, 25.75], [-0.03, 25.97], [-0.18, 26.32], [-0.53, 26.47], [-0.68, 26.82], [-1.03, 26.97], [-1.25, 27.5], [-1.15, 27.75], [-1.25, 28.0]]]]}, "2024-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 28.0], [-1.15, 28.25], [-1.25, 28.5], [-1.03, 29.03], [-0.68, 29.18], [-0.65, 29.25], [-0.75, 29.5], [-0.53, 30.03], [0.0, 30.25], [0.25, 30.15], [0.32, 30.18], [0.47, 30.53], [1.0, 30.75], [1.53, 30.53], [1.75, 30.0], [1.65, 29.75], [1.75, 29.5], [1.54, 29.0], [1.68, 28.68], [1.75, 28.65], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.68, 28.18], [4.03, 28.03], [4.25, 27.5], [4.15, 27.25], [4.18, 27.18], [4.53, 27.03], [4.68, 26.68], [5.03, 26.53], [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], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.47, 25.47], [1.32, 25.82], [1.25, 25.85], [1.0, 25.75], [0.75, 25.85], [0.5, 25.75], [-0.03, 25.97], [-0.18, 26.32], [-0.53, 26.47], [-0.68, 26.82], [-1.03, 26.97], [-1.25, 27.5], [-1.15, 27.75], [-1.25, 28.0]]]]}, "2024-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.25, 28.0], [-1.15, 28.25], [-1.25, 28.5], [-1.03, 29.03], [-0.68, 29.18], [-0.65, 29.25], [-0.75, 29.5], [-0.53, 30.03], [0.0, 30.25], [0.25, 30.15], [0.32, 30.18], [0.47, 30.53], [1.0, 30.75], [1.53, 30.53], [1.75, 30.0], [1.65, 29.75], [1.75, 29.5], [1.54, 29.0], [1.68, 28.68], [1.75, 28.65], [2.0, 28.75], [2.25, 28.65], [2.5, 28.75], [2.75, 28.65], [3.0, 28.75], [3.53, 28.53], [3.68, 28.18], [4.03, 28.03], [4.25, 27.5], [4.15, 27.25], [4.18, 27.18], [4.53, 27.03], [4.68, 26.68], [5.03, 26.53], [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], [2.75, 25.35], [2.5, 25.25], [2.25, 25.35], [2.0, 25.25], [1.47, 25.47], [1.32, 25.82], [1.25, 25.85], [1.0, 25.75], [0.75, 25.85], [0.5, 25.75], [-0.03, 25.97], [-0.18, 26.32], [-0.53, 26.47], [-0.68, 26.82], [-1.03, 26.97], [-1.25, 27.5], [-1.15, 27.75], [-1.25, 28.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.812884224815093}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.415064927481797}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.12036450636225, 18.57006522135532, 19.441528718424593, 19.1848610847008]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.12036450636225, 20.97102748499526, 21.945714057597684, 21.93397738487124]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.382484058750549, 4.054063290814274, 4.814012830266944, 4.398630762796071]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.382484058750549, 5.432757823458644, 5.812884224815093, 5.3537890697641615]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3460917523576599, 1.5152733417890516, 1.7416872289648244, 1.5353576545115217]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3460917523576599, 1.7494260783384386, 2.016503515883902, 1.8861350359339963]}}