{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:02.025297", "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": "2020-Feb-23_to_2020-Feb-25_48.5_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": 2020020002221}, "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 23 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 25 2020"}, "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": 75060.10191007411}, "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": 48.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "48.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.5, 22.75], [48.75, 22.65], [49.0, 22.75], [49.25, 22.65], [49.5, 22.75], [50.03, 22.53], [50.18, 22.18], [50.25, 22.15], [50.32, 22.18], [50.47, 22.53], [51.0, 22.75], [51.25, 22.65], [51.5, 22.75], [52.03, 22.53], [52.25, 22.0], [52.04, 21.5], [52.25, 21.0], [52.15, 20.75], [52.25, 20.5], [52.03, 19.97], [51.68, 19.82], [51.65, 19.75], [51.75, 19.5], [51.53, 18.97], [51.0, 18.75], [50.75, 18.85], [50.5, 18.75], [50.25, 18.85], [50.0, 18.75], [49.75, 18.85], [49.5, 18.75], [48.97, 18.97], [48.75, 19.5], [48.97, 20.03], [49.32, 20.18], [49.46, 20.5], [49.32, 20.82], [49.25, 20.85], [49.0, 20.75], [48.75, 20.85], [48.5, 20.75], [48.25, 20.85], [48.0, 20.75], [47.47, 20.97], [47.25, 21.5], [47.47, 22.03], [47.82, 22.18], [47.97, 22.53], [48.5, 22.75]]]]}, "2020-02-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.5, 22.75], [48.75, 22.65], [49.0, 22.75], [49.25, 22.65], [49.5, 22.75], [50.03, 22.53], [50.18, 22.18], [50.25, 22.15], [50.32, 22.18], [50.47, 22.53], [51.0, 22.75], [51.25, 22.65], [51.5, 22.75], [52.03, 22.53], [52.25, 22.0], [52.04, 21.5], [52.25, 21.0], [52.15, 20.75], [52.25, 20.5], [52.03, 19.97], [51.68, 19.82], [51.65, 19.75], [51.75, 19.5], [51.53, 18.97], [51.0, 18.75], [50.75, 18.85], [50.5, 18.75], [50.25, 18.85], [50.0, 18.75], [49.75, 18.85], [49.5, 18.75], [48.97, 18.97], [48.75, 19.5], [48.97, 20.03], [49.32, 20.18], [49.46, 20.5], [49.32, 20.82], [49.25, 20.85], [49.0, 20.75], [48.75, 20.85], [48.5, 20.75], [48.25, 20.85], [48.0, 20.75], [47.47, 20.97], [47.25, 21.5], [47.47, 22.03], [47.82, 22.18], [47.97, 22.53], [48.5, 22.75]]]]}, "2020-02-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.5, 22.75], [48.75, 22.65], [49.0, 22.75], [49.25, 22.65], [49.5, 22.75], [50.03, 22.53], [50.18, 22.18], [50.25, 22.15], [50.32, 22.18], [50.47, 22.53], [51.0, 22.75], [51.25, 22.65], [51.5, 22.75], [52.03, 22.53], [52.25, 22.0], [52.04, 21.5], [52.25, 21.0], [52.15, 20.75], [52.25, 20.5], [52.03, 19.97], [51.68, 19.82], [51.65, 19.75], [51.75, 19.5], [51.53, 18.97], [51.0, 18.75], [50.75, 18.85], [50.5, 18.75], [50.25, 18.85], [50.0, 18.75], [49.75, 18.85], [49.5, 18.75], [48.97, 18.97], [48.75, 19.5], [48.97, 20.03], [49.32, 20.18], [49.46, 20.5], [49.32, 20.82], [49.25, 20.85], [49.0, 20.75], [48.75, 20.85], [48.5, 20.75], [48.25, 20.85], [48.0, 20.75], [47.47, 20.97], [47.25, 21.5], [47.47, 22.03], [47.82, 22.18], [47.97, 22.53], [48.5, 22.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.3961678756472224}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.410623528046022}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.74130667588753, 27.264561912013562, 27.80865473446113]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.89899891051533, 28.01029318120493, 28.51914473668046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.980586694683259, 5.417213307407066, 5.83407058204774]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.392796789879242, 6.708750828654729, 7.3961678756472224]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4528474586240312, 1.5911930947106956, 1.7154627234080986]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5261721935265802, 1.995883435276021, 2.161084482696297]}}