{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:43.419239", "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": "2012-Feb-16_to_2012-Feb-18_46.5_22.0"}, "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": 2012020002312}, "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 16 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 18 2012"}, "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": 54235.76489127537}, "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": ["Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 22.0}, "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": 46.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.75}, "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": 21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.5, 23.25], [45.75, 23.15], [46.0, 23.25], [46.25, 23.15], [46.32, 23.18], [46.35, 23.25], [46.25, 23.5], [46.47, 24.03], [47.0, 24.25], [47.25, 24.15], [47.5, 24.25], [47.75, 24.15], [48.0, 24.25], [48.25, 24.15], [48.5, 24.25], [49.03, 24.03], [49.25, 23.5], [49.03, 22.97], [48.68, 22.82], [48.53, 22.47], [48.18, 22.32], [48.03, 21.97], [47.68, 21.82], [47.53, 21.47], [47.18, 21.32], [47.03, 20.97], [46.5, 20.75], [46.25, 20.85], [46.0, 20.75], [45.47, 20.97], [45.32, 21.32], [45.25, 21.35], [45.0, 21.25], [44.47, 21.47], [44.25, 22.0], [44.47, 22.53], [44.82, 22.68], [44.97, 23.03], [45.5, 23.25]]]]}, "2012-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.5, 23.25], [45.75, 23.15], [46.0, 23.25], [46.25, 23.15], [46.32, 23.18], [46.35, 23.25], [46.25, 23.5], [46.47, 24.03], [47.0, 24.25], [47.25, 24.15], [47.5, 24.25], [47.75, 24.15], [48.0, 24.25], [48.25, 24.15], [48.5, 24.25], [49.03, 24.03], [49.25, 23.5], [49.03, 22.97], [48.68, 22.82], [48.53, 22.47], [48.18, 22.32], [48.03, 21.97], [47.68, 21.82], [47.53, 21.47], [47.18, 21.32], [47.03, 20.97], [46.5, 20.75], [46.25, 20.85], [46.0, 20.75], [45.47, 20.97], [45.32, 21.32], [45.25, 21.35], [45.0, 21.25], [44.47, 21.47], [44.25, 22.0], [44.47, 22.53], [44.82, 22.68], [44.97, 23.03], [45.5, 23.25]]]]}, "2012-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.5, 23.25], [45.75, 23.15], [46.0, 23.25], [46.25, 23.15], [46.32, 23.18], [46.35, 23.25], [46.25, 23.5], [46.47, 24.03], [47.0, 24.25], [47.25, 24.15], [47.5, 24.25], [47.75, 24.15], [48.0, 24.25], [48.25, 24.15], [48.5, 24.25], [49.03, 24.03], [49.25, 23.5], [49.03, 22.97], [48.68, 22.82], [48.53, 22.47], [48.18, 22.32], [48.03, 21.97], [47.68, 21.82], [47.53, 21.47], [47.18, 21.32], [47.03, 20.97], [46.5, 20.75], [46.25, 20.85], [46.0, 20.75], [45.47, 20.97], [45.32, 21.32], [45.25, 21.35], [45.0, 21.25], [44.47, 21.47], [44.25, 22.0], [44.47, 22.53], [44.82, 22.68], [44.97, 23.03], [45.5, 23.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.38390767085042}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.673153105204271}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.282757565901022, 25.494965528221258, 24.226220193998074]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.207384973058936, 27.168711431912584, 25.439087128511233]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.881254690700102, 6.804655088395188, 5.333549536517523]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.357694960671438, 8.38390767085042, 6.299314181117609]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.584633921429647, 2.1757889266750268, 1.6712528912185813]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.975974415626462, 2.7069181682370673, 1.9905860205565784]}}