{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:20.341067", "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": "2013-Aug-30_to_2013-Sep-01_359.5_23.0"}, "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": 2013080003187}, "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": "August 30 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2013"}, "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": 79810.25823168812}, "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", "Mali"]}, "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": 23.0}, "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": 359.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "359.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 355.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.75, 22.5], [-4.53, 23.03], [-4.0, 23.25], [-3.5, 23.04], [-3.0, 23.25], [-2.7, 23.12], [-2.53, 23.53], [-2.18, 23.68], [-2.03, 24.03], [-1.5, 24.25], [-1.25, 24.15], [-1.18, 24.18], [-1.03, 24.53], [-0.5, 24.75], [-0.25, 24.65], [0.0, 24.75], [0.5, 24.54], [1.0, 24.75], [1.53, 24.53], [1.75, 24.0], [1.53, 23.47], [1.18, 23.32], [1.03, 22.97], [0.68, 22.82], [0.65, 22.75], [0.75, 22.5], [0.53, 21.97], [0.18, 21.82], [0.03, 21.47], [-0.5, 21.25], [-0.75, 21.35], [-1.0, 21.25], [-1.25, 21.35], [-1.5, 21.25], [-1.75, 21.35], [-1.82, 21.32], [-1.97, 20.97], [-2.5, 20.75], [-2.75, 20.85], [-3.0, 20.75], [-3.53, 20.97], [-3.68, 21.32], [-4.03, 21.47], [-4.18, 21.82], [-4.53, 21.97], [-4.75, 22.5]]]]}, "2013-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.75, 22.5], [-4.53, 23.03], [-4.0, 23.25], [-3.5, 23.04], [-3.0, 23.25], [-2.7, 23.12], [-2.53, 23.53], [-2.18, 23.68], [-2.03, 24.03], [-1.5, 24.25], [-1.25, 24.15], [-1.18, 24.18], [-1.03, 24.53], [-0.5, 24.75], [-0.25, 24.65], [0.0, 24.75], [0.5, 24.54], [1.0, 24.75], [1.53, 24.53], [1.75, 24.0], [1.53, 23.47], [1.18, 23.32], [1.03, 22.97], [0.68, 22.82], [0.65, 22.75], [0.75, 22.5], [0.53, 21.97], [0.18, 21.82], [0.03, 21.47], [-0.5, 21.25], [-0.75, 21.35], [-1.0, 21.25], [-1.25, 21.35], [-1.5, 21.25], [-1.75, 21.35], [-1.82, 21.32], [-1.97, 20.97], [-2.5, 20.75], [-2.75, 20.85], [-3.0, 20.75], [-3.53, 20.97], [-3.68, 21.32], [-4.03, 21.47], [-4.18, 21.82], [-4.53, 21.97], [-4.75, 22.5]]]]}, "2013-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.75, 22.5], [-4.53, 23.03], [-4.0, 23.25], [-3.5, 23.04], [-3.0, 23.25], [-2.7, 23.12], [-2.53, 23.53], [-2.18, 23.68], [-2.03, 24.03], [-1.5, 24.25], [-1.25, 24.15], [-1.18, 24.18], [-1.03, 24.53], [-0.5, 24.75], [-0.25, 24.65], [0.0, 24.75], [0.5, 24.54], [1.0, 24.75], [1.53, 24.53], [1.75, 24.0], [1.53, 23.47], [1.18, 23.32], [1.03, 22.97], [0.68, 22.82], [0.65, 22.75], [0.75, 22.5], [0.53, 21.97], [0.18, 21.82], [0.03, 21.47], [-0.5, 21.25], [-0.75, 21.35], [-1.0, 21.25], [-1.25, 21.35], [-1.5, 21.25], [-1.75, 21.35], [-1.82, 21.32], [-1.97, 20.97], [-2.5, 20.75], [-2.75, 20.85], [-3.0, 20.75], [-3.53, 20.97], [-3.68, 21.32], [-4.03, 21.47], [-4.18, 21.82], [-4.53, 21.97], [-4.75, 22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.15192780363094}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2138825475110204}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.90651828150635, 38.462967475393555, 38.075180164777805]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.89115391212715, 38.877447068438244, 39.109816842441546]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9575479625988683, 2.5115612485872396, 2.1725384313469527]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.5759050985869294, 3.15192780363094, 2.9651846529573618]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6655870610887165, 2.1234294529599205, 1.7964400691180824]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2337700346988165, 2.691424130180893, 2.243333327583025]}}