{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:03.075928", "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": "2018-Sep-02_to_2018-Sep-09_55.5_25.0"}, "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": 2018090001376}, "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": "September 02 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 09 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 102153.15941579996}, "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": ["Oman", "Saudi Arabia", "United Arab Emirates"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "W.C.Asia"]}, "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": ["Persian Gulf"]}, "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": 25.0}, "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": 55.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "55.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 56.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.5, 23.75], [54.75, 23.65], [55.0, 23.75], [55.53, 23.53], [55.75, 23.0], [55.53, 22.47], [55.18, 22.32], [55.03, 21.97], [54.5, 21.75], [53.97, 21.97], [53.75, 22.5], [53.85, 22.75], [53.75, 23.0], [53.97, 23.53], [54.5, 23.75]]], [[[54.75, 25.5], [54.97, 26.03], [55.5, 26.25], [56.03, 26.03], [56.25, 25.5], [56.15, 25.25], [56.25, 25.0], [56.15, 24.75], [56.25, 24.5], [56.03, 23.97], [55.5, 23.75], [54.97, 23.97], [54.75, 24.5], [54.85, 24.75], [54.75, 25.0], [54.85, 25.25], [54.75, 25.5]]]]}, "2018-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.25, 23.0], [53.47, 23.53], [53.82, 23.68], [53.85, 23.75], [53.75, 24.0], [53.97, 24.53], [54.32, 24.68], [54.35, 24.75], [54.32, 24.82], [53.97, 24.97], [53.75, 25.5], [53.97, 26.03], [54.5, 26.25], [54.75, 26.15], [55.0, 26.25], [55.25, 26.15], [55.5, 26.25], [56.03, 26.03], [56.25, 25.5], [56.15, 25.25], [56.25, 25.0], [56.15, 24.75], [56.25, 24.5], [56.15, 24.25], [56.25, 24.0], [56.03, 23.47], [55.68, 23.32], [55.65, 23.25], [55.75, 23.0], [55.53, 22.47], [55.18, 22.32], [55.03, 21.97], [54.5, 21.75], [53.97, 21.97], [53.82, 22.32], [53.47, 22.47], [53.25, 23.0]]]]}, "2018-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.35, 23.75], [53.25, 24.0], [53.47, 24.53], [53.82, 24.68], [53.85, 24.75], [53.75, 25.0], [53.85, 25.25], [53.75, 25.5], [53.97, 26.03], [54.5, 26.25], [54.75, 26.15], [55.0, 26.25], [55.25, 26.15], [55.5, 26.25], [56.03, 26.03], [56.25, 25.5], [56.15, 25.25], [56.25, 25.0], [56.15, 24.75], [56.25, 24.5], [56.15, 24.25], [56.25, 24.0], [56.03, 23.47], [55.68, 23.32], [55.65, 23.25], [55.75, 23.0], [55.53, 22.47], [55.18, 22.32], [55.03, 21.97], [54.5, 21.75], [53.97, 21.97], [53.82, 22.32], [53.47, 22.47], [53.25, 23.0], [53.35, 23.25], [53.25, 23.5], [53.35, 23.75]]]]}, "2018-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.35, 23.75], [53.25, 24.0], [53.47, 24.53], [53.82, 24.68], [53.85, 24.75], [53.75, 25.0], [53.85, 25.25], [53.75, 25.5], [53.97, 26.03], [54.5, 26.25], [54.75, 26.15], [55.0, 26.25], [55.25, 26.15], [55.32, 26.18], [55.47, 26.53], [56.0, 26.75], [56.53, 26.53], [56.75, 26.0], [56.53, 25.47], [56.18, 25.32], [56.15, 25.25], [56.18, 25.18], [56.53, 25.03], [56.75, 24.5], [56.53, 23.97], [56.18, 23.82], [56.15, 23.75], [56.25, 23.5], [56.03, 22.97], [55.68, 22.82], [55.53, 22.47], [55.18, 22.32], [55.03, 21.97], [54.5, 21.75], [53.97, 21.97], [53.82, 22.32], [53.47, 22.47], [53.25, 23.0], [53.35, 23.25], [53.25, 23.5], [53.35, 23.75]]]]}, "2018-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.47, 24.53], [53.82, 24.68], [53.85, 24.75], [53.75, 25.0], [53.85, 25.25], [53.75, 25.5], [53.97, 26.03], [54.5, 26.25], [55.0, 26.04], [55.32, 26.18], [55.47, 26.53], [56.0, 26.75], [56.53, 26.53], [56.75, 26.0], [56.53, 25.47], [56.18, 25.32], [56.15, 25.25], [56.18, 25.18], [56.53, 25.03], [56.75, 24.5], [56.53, 23.97], [56.18, 23.82], [56.15, 23.75], [56.25, 23.5], [56.03, 22.97], [55.68, 22.82], [55.65, 22.75], [55.75, 22.5], [55.53, 21.97], [55.18, 21.82], [55.03, 21.47], [54.5, 21.25], [54.25, 21.35], [54.0, 21.25], [53.47, 21.47], [53.25, 22.0], [53.47, 22.53], [53.82, 22.68], [53.85, 22.75], [53.82, 22.82], [53.47, 22.97], [53.25, 23.5], [53.35, 23.75], [53.25, 24.0], [53.47, 24.53]]]]}, "2018-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.32, 21.68], [53.35, 21.75], [53.25, 22.0], [53.47, 22.53], [53.82, 22.68], [53.85, 22.75], [53.82, 22.82], [53.47, 22.97], [53.25, 23.5], [53.47, 24.03], [54.0, 24.25], [54.25, 24.15], [54.32, 24.18], [54.35, 24.25], [54.25, 24.5], [54.35, 24.75], [54.25, 25.0], [54.47, 25.53], [54.82, 25.68], [54.97, 26.03], [55.32, 26.18], [55.47, 26.53], [56.0, 26.75], [56.53, 26.53], [56.75, 26.0], [56.53, 25.47], [56.18, 25.32], [56.15, 25.25], [56.18, 25.18], [56.53, 25.03], [56.75, 24.5], [56.54, 24.0], [56.75, 23.5], [56.65, 23.25], [56.75, 23.0], [56.53, 22.47], [56.18, 22.32], [56.03, 21.97], [55.5, 21.75], [55.25, 21.85], [55.18, 21.82], [55.15, 21.75], [55.25, 21.5], [55.15, 21.25], [55.25, 21.0], [55.03, 20.47], [54.5, 20.25], [54.25, 20.35], [54.18, 20.32], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.0, 19.75], [52.47, 19.97], [52.25, 20.5], [52.47, 21.03], [52.82, 21.18], [52.97, 21.53], [53.32, 21.68]]]]}, "2018-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.32, 21.68], [53.35, 21.75], [53.25, 22.0], [53.47, 22.53], [53.82, 22.68], [53.97, 23.03], [54.5, 23.25], [54.75, 23.15], [55.0, 23.25], [55.25, 23.15], [55.32, 23.18], [55.35, 23.25], [55.25, 23.5], [55.47, 24.03], [56.0, 24.25], [56.53, 24.03], [56.75, 23.5], [56.65, 23.25], [56.75, 23.0], [56.53, 22.47], [56.18, 22.32], [56.03, 21.97], [55.5, 21.75], [55.25, 21.85], [55.18, 21.82], [55.15, 21.75], [55.25, 21.5], [55.15, 21.25], [55.25, 21.0], [55.03, 20.47], [54.5, 20.25], [54.25, 20.35], [54.18, 20.32], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.0, 19.75], [52.47, 19.97], [52.25, 20.5], [52.47, 21.03], [52.82, 21.18], [52.97, 21.53], [53.32, 21.68]]]]}, "2018-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[53.32, 21.68], [53.47, 22.03], [53.82, 22.18], [53.97, 22.53], [54.5, 22.75], [54.8, 22.63], [54.97, 23.03], [55.32, 23.18], [55.35, 23.25], [55.25, 23.5], [55.47, 24.03], [56.0, 24.25], [56.53, 24.03], [56.75, 23.5], [56.65, 23.25], [56.75, 23.0], [56.53, 22.47], [56.18, 22.32], [56.03, 21.97], [55.5, 21.75], [55.2, 21.88], [55.15, 21.75], [55.25, 21.5], [55.15, 21.25], [55.25, 21.0], [55.03, 20.47], [54.5, 20.25], [54.25, 20.35], [54.18, 20.32], [54.03, 19.97], [53.5, 19.75], [53.25, 19.85], [53.0, 19.75], [52.47, 19.97], [52.25, 20.5], [52.47, 21.03], [52.82, 21.18], [52.97, 21.53], [53.32, 21.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.557611478124841}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5919065495631046}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [37.33000824510043, 37.0954327825342, 37.112230961469265, 37.3382088527315, 37.11206009590137, 37.462684881172606, 38.250108233117146, 37.37818705517901]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [38.072010546084414, 38.21448406468454, 38.27153830649013, 39.22095654903876, 38.37049175712207, 38.61378271436752, 39.40638283490739, 37.80383940100603]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0015812583827803, 2.224900485352663, 2.4482217738245766, 2.8377662453028782, 2.570700604836245, 2.6765749271135397, 3.1200520911760106, 2.3457695885727503]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2143651637432527, 2.641118424635181, 3.368044460859835, 4.557611478124841, 3.845204434123957, 3.3173840398882817, 4.256221216823462, 2.7715693942211033]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4680769000691238, 1.753259390971159, 1.9351858376779068, 2.250271479342323, 1.9493303652740073, 1.7496748508349813, 1.8618332314207076, 1.5164698070205247]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8397773915140183, 2.1561196452931277, 2.535449396042059, 3.491347355687046, 2.9191390257612837, 2.423620993824239, 2.298707913311765, 1.808375945158741]}}