{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:46.638182", "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-May-03_to_2018-May-10_50.5_18.0"}, "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": 2018050001560}, "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": "May 03 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 10 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": 281435.1240954994}, "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", "Yemen"]}, "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": ["Arabian Sea"]}, "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": 18.0}, "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": 50.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 57.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.0, 22.75], [57.53, 22.53], [57.75, 22.0], [57.53, 21.47], [57.0, 21.25], [56.47, 21.47], [56.25, 22.0], [56.47, 22.53], [57.0, 22.75]]]]}, "2018-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.75, 16.5], [51.97, 17.03], [52.5, 17.25], [52.75, 17.15], [53.0, 17.25], [53.25, 17.15], [53.5, 17.25], [54.03, 17.03], [54.25, 16.5], [54.03, 15.97], [53.5, 15.75], [53.25, 15.85], [53.0, 15.75], [52.75, 15.85], [52.5, 15.75], [51.97, 15.97], [51.75, 16.5]]], [[[56.25, 19.5], [56.35, 19.75], [56.25, 20.0], [56.47, 20.53], [57.0, 20.75], [57.25, 20.65], [57.5, 20.75], [58.03, 20.53], [58.25, 20.0], [58.15, 19.75], [58.25, 19.5], [58.15, 19.25], [58.25, 19.0], [58.03, 18.47], [57.5, 18.25], [57.25, 18.35], [57.18, 18.32], [57.03, 17.97], [56.5, 17.75], [56.2, 17.88], [56.03, 17.47], [55.5, 17.25], [54.97, 17.47], [54.75, 18.0], [54.97, 18.53], [55.5, 18.75], [55.8, 18.63], [55.97, 19.03], [56.32, 19.18], [56.35, 19.25], [56.25, 19.5]]], [[[56.25, 22.0], [56.47, 22.53], [57.0, 22.75], [57.53, 22.53], [57.75, 22.0], [57.65, 21.75], [57.75, 21.5], [57.53, 20.97], [57.0, 20.75], [56.47, 20.97], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0]]]]}, "2018-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.5, 18.75], [51.03, 18.53], [51.18, 18.18], [51.25, 18.15], [51.5, 18.25], [52.03, 18.03], [52.25, 17.5], [52.13, 17.2], [52.25, 17.15], [52.5, 17.25], [52.75, 17.15], [52.82, 17.18], [52.97, 17.53], [53.32, 17.68], [53.47, 18.03], [54.0, 18.25], [54.25, 18.15], [54.5, 18.25], [54.8, 18.13], [54.97, 18.53], [55.32, 18.68], [55.35, 18.75], [55.25, 19.0], [55.35, 19.25], [55.25, 19.5], [55.47, 20.03], [55.82, 20.18], [55.97, 20.53], [56.32, 20.68], [56.35, 20.75], [56.25, 21.0], [56.35, 21.25], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.47, 22.53], [57.0, 22.75], [57.53, 22.53], [57.68, 22.18], [58.03, 22.03], [58.25, 21.5], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.15, 20.25], [58.25, 20.0], [58.15, 19.75], [58.25, 19.5], [58.15, 19.25], [58.25, 19.0], [58.03, 18.47], [57.5, 18.25], [57.25, 18.35], [57.18, 18.32], [57.03, 17.97], [56.5, 17.75], [56.25, 17.85], [56.18, 17.82], [56.03, 17.47], [55.5, 17.25], [55.2, 17.38], [55.03, 16.97], [54.5, 16.75], [54.25, 16.85], [54.18, 16.82], [54.15, 16.75], [54.25, 16.5], [54.03, 15.97], [53.5, 15.75], [53.25, 15.85], [53.0, 15.75], [52.75, 15.85], [52.5, 15.75], [52.25, 15.85], [52.0, 15.75], [51.47, 15.97], [51.25, 16.5], [51.38, 16.8], [51.25, 16.85], [51.0, 16.75], [50.75, 16.85], [50.5, 16.75], [49.97, 16.97], [49.75, 17.5], [49.85, 17.75], [49.75, 18.0], [49.97, 18.53], [50.5, 18.75]]], [[[48.47, 18.97], [48.25, 19.5], [48.47, 20.03], [49.0, 20.25], [49.53, 20.03], [49.75, 19.5], [49.53, 18.97], [49.0, 18.75], [48.47, 18.97]]]]}, "2018-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.0, 20.75], [50.53, 20.53], [50.68, 20.18], [50.75, 20.15], [51.0, 20.25], [51.53, 20.03], [51.75, 19.5], [51.63, 19.2], [51.75, 19.15], [52.0, 19.25], [52.53, 19.03], [52.75, 18.5], [52.65, 18.25], [52.75, 18.0], [52.65, 17.75], [52.68, 17.68], [52.75, 17.65], [52.82, 17.68], [52.97, 18.03], [53.32, 18.18], [53.47, 18.53], [54.0, 18.75], [54.25, 18.65], [54.5, 18.75], [54.8, 18.63], [54.97, 19.03], [55.32, 19.18], [55.35, 19.25], [55.25, 19.5], [55.47, 20.03], [55.82, 20.18], [55.97, 20.53], [56.32, 20.68], [56.35, 20.75], [56.25, 21.0], [56.35, 21.25], [56.25, 21.5], [56.35, 21.75], [56.25, 22.0], [56.47, 22.53], [56.82, 22.68], [56.97, 23.03], [57.5, 23.25], [58.03, 23.03], [58.25, 22.5], [58.04, 22.0], [58.25, 21.5], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.15, 20.25], [58.25, 20.0], [58.15, 19.75], [58.25, 19.5], [58.15, 19.25], [58.25, 19.0], [58.03, 18.47], [57.5, 18.25], [57.25, 18.35], [57.18, 18.32], [57.03, 17.97], [56.5, 17.75], [56.25, 17.85], [56.18, 17.82], [56.15, 17.75], [56.25, 17.5], [56.03, 16.97], [55.5, 16.75], [55.25, 16.85], [55.0, 16.75], [54.75, 16.85], [54.5, 16.75], [54.25, 16.85], [54.18, 16.82], [54.15, 16.75], [54.25, 16.5], [54.03, 15.97], [53.5, 15.75], [53.25, 15.85], [53.0, 15.75], [52.75, 15.85], [52.5, 15.75], [52.25, 15.85], [52.0, 15.75], [51.47, 15.97], [51.32, 16.32], [50.97, 16.47], [50.82, 16.82], [50.75, 16.85], [50.68, 16.82], [50.53, 16.47], [50.0, 16.25], [49.47, 16.47], [49.32, 16.82], [48.97, 16.97], [48.75, 17.5], [48.97, 18.03], [49.5, 18.25], [49.75, 18.15], [49.82, 18.18], [49.85, 18.25], [49.75, 18.5], [49.88, 18.8], [49.5, 18.96], [49.0, 18.75], [48.47, 18.97], [48.25, 19.5], [48.47, 20.03], [49.0, 20.25], [49.3, 20.13], [49.47, 20.53], [50.0, 20.75]]]]}, "2018-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.35, 17.25], [47.25, 17.5], [47.35, 17.75], [47.25, 18.0], [47.47, 18.53], [48.0, 18.75], [48.25, 18.65], [48.5, 18.75], [48.75, 18.65], [48.82, 18.68], [48.85, 18.75], [48.82, 18.82], [48.47, 18.97], [48.25, 19.5], [48.47, 20.03], [49.0, 20.25], [49.3, 20.13], [49.35, 20.25], [49.25, 20.5], [49.47, 21.03], [50.0, 21.25], [50.25, 21.15], [50.5, 21.25], [51.03, 21.03], [51.25, 20.5], [51.15, 20.25], [51.18, 20.18], [51.53, 20.03], [51.68, 19.68], [52.03, 19.53], [52.18, 19.18], [52.25, 19.15], [52.5, 19.25], [52.75, 19.15], [53.0, 19.25], [53.25, 19.15], [53.5, 19.25], [54.03, 19.03], [54.18, 18.68], [54.25, 18.65], [54.5, 18.75], [54.8, 18.63], [54.97, 19.03], [55.32, 19.18], [55.35, 19.25], [55.25, 19.5], [55.47, 20.03], [55.82, 20.18], [55.97, 20.53], [56.32, 20.68], [56.35, 20.75], [56.25, 21.0], [56.35, 21.25], [56.25, 21.5], [56.47, 22.03], [56.88, 22.2], [56.75, 22.5], [56.97, 23.03], [57.5, 23.25], [58.03, 23.03], [58.25, 22.5], [58.04, 22.0], [58.25, 21.5], [58.15, 21.25], [58.25, 21.0], [58.15, 20.75], [58.25, 20.5], [58.15, 20.25], [58.25, 20.0], [58.15, 19.75], [58.25, 19.5], [58.03, 18.97], [57.5, 18.75], [57.25, 18.85], [57.18, 18.82], [57.03, 18.47], [56.68, 18.32], [56.53, 17.97], [56.18, 17.82], [56.15, 17.75], [56.25, 17.5], [56.03, 16.97], [55.5, 16.75], [55.25, 16.85], [55.0, 16.75], [54.75, 16.85], [54.5, 16.75], [54.25, 16.85], [54.18, 16.82], [54.03, 16.47], [53.5, 16.25], [53.25, 16.35], [53.18, 16.32], [53.03, 15.97], [52.5, 15.75], [52.25, 15.85], [52.0, 15.75], [51.47, 15.97], [51.32, 16.32], [50.97, 16.47], [50.82, 16.82], [50.75, 16.85], [50.68, 16.82], [50.65, 16.75], [50.75, 16.5], [50.53, 15.97], [50.0, 15.75], [49.75, 15.85], [49.5, 15.75], [49.25, 15.85], [49.0, 15.75], [48.75, 15.85], [48.5, 15.75], [48.25, 15.85], [48.0, 15.75], [47.47, 15.97], [47.25, 16.5], [47.35, 16.75], [47.25, 17.0], [47.35, 17.25]]]]}, "2018-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 18.03], [47.32, 18.18], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.97, 19.53], [48.5, 19.75], [48.75, 19.65], [49.0, 19.75], [49.25, 19.65], [49.32, 19.68], [49.35, 19.75], [49.25, 20.0], [49.35, 20.25], [49.25, 20.5], [49.47, 21.03], [50.0, 21.25], [50.25, 21.15], [50.5, 21.25], [51.03, 21.03], [51.25, 20.5], [51.15, 20.25], [51.18, 20.18], [51.53, 20.03], [51.68, 19.68], [52.03, 19.53], [52.18, 19.18], [52.25, 19.15], [52.5, 19.25], [52.75, 19.15], [53.0, 19.25], [53.25, 19.15], [53.5, 19.25], [54.03, 19.03], [54.18, 18.68], [54.25, 18.65], [54.5, 18.75], [54.8, 18.63], [54.97, 19.03], [55.32, 19.18], [55.35, 19.25], [55.25, 19.5], [55.47, 20.03], [56.0, 20.25], [56.53, 20.03], [56.75, 19.5], [56.65, 19.25], [56.75, 19.0], [56.53, 18.47], [56.18, 18.32], [56.15, 18.25], [56.25, 18.0], [56.15, 17.75], [56.25, 17.5], [56.03, 16.97], [55.5, 16.75], [55.25, 16.85], [55.0, 16.75], [54.47, 16.97], [54.32, 17.32], [54.25, 17.35], [54.18, 17.32], [54.03, 16.97], [53.68, 16.82], [53.53, 16.47], [53.0, 16.25], [52.75, 16.35], [52.5, 16.25], [52.0, 16.46], [51.5, 16.25], [50.97, 16.47], [50.82, 16.82], [50.75, 16.85], [50.68, 16.82], [50.65, 16.75], [50.75, 16.5], [50.53, 15.97], [50.0, 15.75], [49.75, 15.85], [49.5, 15.75], [49.25, 15.85], [49.0, 15.75], [48.75, 15.85], [48.5, 15.75], [48.25, 15.85], [48.0, 15.75], [47.47, 15.97], [47.25, 16.5], [47.35, 16.75], [47.32, 16.82], [46.97, 16.97], [46.75, 17.5], [46.97, 18.03]]], [[[56.97, 21.97], [56.75, 22.5], [56.97, 23.03], [57.5, 23.25], [58.03, 23.03], [58.25, 22.5], [58.03, 21.97], [57.5, 21.75], [56.97, 21.97]]]]}, "2018-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 17.5], [46.97, 18.03], [47.32, 18.18], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.97, 19.53], [48.5, 19.75], [48.75, 19.65], [49.0, 19.75], [49.25, 19.65], [49.32, 19.68], [49.35, 19.75], [49.25, 20.0], [49.35, 20.25], [49.25, 20.5], [49.47, 21.03], [50.0, 21.25], [50.25, 21.15], [50.5, 21.25], [51.03, 21.03], [51.25, 20.5], [51.15, 20.25], [51.18, 20.18], [51.53, 20.03], [51.68, 19.68], [52.03, 19.53], [52.18, 19.18], [52.25, 19.15], [52.5, 19.25], [52.75, 19.15], [53.0, 19.25], [53.25, 19.15], [53.5, 19.25], [54.03, 19.03], [54.25, 18.5], [54.03, 17.97], [53.68, 17.82], [53.53, 17.47], [53.0, 17.25], [52.75, 17.35], [52.5, 17.25], [52.25, 17.35], [52.0, 17.25], [51.75, 17.35], [51.5, 17.25], [51.25, 17.35], [51.18, 17.32], [51.03, 16.97], [50.68, 16.82], [50.65, 16.75], [50.75, 16.5], [50.53, 15.97], [50.0, 15.75], [49.75, 15.85], [49.5, 15.75], [49.25, 15.85], [49.0, 15.75], [48.75, 15.85], [48.5, 15.75], [48.25, 15.85], [48.0, 15.75], [47.47, 15.97], [47.25, 16.5], [47.35, 16.75], [47.32, 16.82], [46.97, 16.97], [46.75, 17.5]]]]}, "2018-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.75, 17.5], [46.97, 18.03], [47.32, 18.18], [47.35, 18.25], [47.25, 18.5], [47.47, 19.03], [47.82, 19.18], [47.97, 19.53], [48.5, 19.75], [48.75, 19.65], [49.0, 19.75], [49.25, 19.65], [49.32, 19.68], [49.35, 19.75], [49.25, 20.0], [49.47, 20.53], [50.0, 20.75], [50.53, 20.53], [50.75, 20.0], [50.65, 19.75], [50.68, 19.68], [50.75, 19.65], [51.0, 19.75], [51.25, 19.65], [51.5, 19.75], [52.03, 19.53], [52.18, 19.18], [52.25, 19.15], [52.5, 19.25], [53.03, 19.03], [53.25, 18.5], [53.15, 18.25], [53.25, 18.0], [53.03, 17.47], [52.5, 17.25], [51.97, 17.47], [51.82, 17.82], [51.75, 17.85], [51.5, 17.75], [51.25, 17.85], [51.18, 17.82], [51.03, 17.47], [50.5, 17.25], [50.25, 17.35], [50.18, 17.32], [50.03, 16.97], [49.68, 16.82], [49.53, 16.47], [49.18, 16.32], [49.03, 15.97], [48.5, 15.75], [48.25, 15.85], [48.0, 15.75], [47.47, 15.97], [47.25, 16.5], [47.35, 16.75], [47.32, 16.82], [46.97, 16.97], [46.75, 17.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.530930384746455}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.124645557561265}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [36.095255462373814, 32.68120214564158, 33.208886659369284, 33.31081340607983, 33.92321347963417, 34.06777893096091, 34.83114493197172, 35.106549923657894]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.095255462373814, 36.541243830822, 36.539196567831254, 37.30172329100424, 37.196446728748754, 36.15667335209662, 36.53714930484051, 36.26817044420858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.136615433666691, 2.2802323562498694, 2.334864450290559, 2.2424919085003445, 2.1974612202503074, 2.0239833347608354, 2.0635344677093137, 1.806333753658633]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.136615433666691, 3.229205386615149, 3.530930384746455, 3.5049093875022095, 3.1402591689023325, 2.7013678990791163, 2.615334870644176, 2.1107207282030345]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4103866461535417, 1.6990621643140211, 1.6760018096695664, 1.661900639161369, 1.6680103248209899, 1.6325997041049038, 1.6811153015499984, 1.4495548204742268]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4103866461535417, 2.1572675817097324, 2.4624263001812294, 2.5427057951771688, 2.3488074193587503, 2.4217599653459687, 2.2348758710906655, 1.7975404529799213]}}