{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:44.313895", "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": "2024-Apr-25_to_2024-Apr-29_132.0_37.0"}, "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": 2024040001863}, "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": "April 25 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 29 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 204960.10387842756}, "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": ["North Korea", "South Korea"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": ["Japan 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": 37.0}, "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": 132.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 135.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 40.25], [126.75, 40.5], [126.97, 41.03], [127.5, 41.25], [127.75, 41.15], [127.82, 41.18], [127.97, 41.53], [128.32, 41.68], [128.47, 42.03], [128.82, 42.18], [128.97, 42.53], [129.32, 42.68], [129.47, 43.03], [130.0, 43.25], [130.53, 43.03], [130.75, 42.5], [130.53, 41.97], [130.18, 41.82], [130.04, 41.5], [130.25, 41.0], [130.03, 40.47], [129.68, 40.32], [129.53, 39.97], [129.0, 39.75], [128.75, 39.85], [128.68, 39.82], [128.65, 39.75], [128.75, 39.5], [128.65, 39.25], [128.68, 39.18], [129.0, 39.04], [129.32, 39.18], [129.47, 39.53], [130.0, 39.75], [130.25, 39.65], [130.5, 39.75], [130.75, 39.65], [131.0, 39.75], [131.25, 39.65], [131.32, 39.68], [131.47, 40.03], [132.0, 40.25], [132.25, 40.15], [132.5, 40.25], [133.03, 40.03], [133.25, 39.5], [133.15, 39.25], [133.25, 39.0], [133.03, 38.47], [132.5, 38.25], [132.25, 38.35], [132.0, 38.25], [132.53, 38.03], [132.75, 37.5], [132.65, 37.25], [132.75, 37.0], [132.53, 36.47], [132.0, 36.25], [131.75, 36.35], [131.5, 36.25], [131.25, 36.35], [131.18, 36.32], [131.03, 35.97], [130.5, 35.75], [129.97, 35.97], [129.82, 36.32], [129.47, 36.47], [129.25, 37.0], [129.35, 37.25], [129.32, 37.32], [129.25, 37.35], [129.0, 37.25], [128.47, 37.47], [128.32, 37.82], [127.97, 37.97], [127.82, 38.32], [127.47, 38.47], [127.32, 38.82], [126.97, 38.97], [126.75, 39.5], [126.85, 39.75], [126.75, 40.0], [126.85, 40.25]], [[131.75, 38.35], [131.68, 38.32], [131.63, 38.2], [131.75, 38.15], [132.0, 38.25], [131.75, 38.35]]]]}, "2024-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 40.25], [126.75, 40.5], [126.97, 41.03], [127.5, 41.25], [127.75, 41.15], [127.82, 41.18], [127.97, 41.53], [128.32, 41.68], [128.47, 42.03], [128.82, 42.18], [128.97, 42.53], [129.32, 42.68], [129.47, 43.03], [130.0, 43.25], [130.53, 43.03], [130.75, 42.5], [130.53, 41.97], [130.18, 41.82], [130.04, 41.5], [130.25, 41.0], [130.03, 40.47], [129.68, 40.32], [129.53, 39.97], [129.0, 39.75], [128.75, 39.85], [128.68, 39.82], [128.65, 39.75], [128.75, 39.5], [128.65, 39.25], [128.68, 39.18], [129.0, 39.04], [129.32, 39.18], [129.47, 39.53], [130.0, 39.75], [130.25, 39.65], [130.5, 39.75], [130.75, 39.65], [131.0, 39.75], [131.25, 39.65], [131.32, 39.68], [131.47, 40.03], [132.0, 40.25], [132.25, 40.15], [132.5, 40.25], [133.03, 40.03], [133.25, 39.5], [133.15, 39.25], [133.25, 39.0], [133.15, 38.75], [133.18, 38.68], [133.25, 38.65], [133.5, 38.75], [134.03, 38.53], [134.18, 38.18], [134.25, 38.15], [134.5, 38.25], [134.75, 38.15], [135.0, 38.25], [135.53, 38.03], [135.68, 37.68], [136.03, 37.53], [136.25, 37.0], [136.03, 36.47], [135.5, 36.25], [135.25, 36.35], [135.0, 36.25], [134.75, 36.35], [134.68, 36.32], [134.53, 35.97], [134.0, 35.75], [133.75, 35.85], [133.5, 35.75], [133.0, 35.96], [132.5, 35.75], [132.25, 35.85], [132.18, 35.82], [132.03, 35.47], [131.5, 35.25], [131.25, 35.35], [131.18, 35.32], [131.15, 35.25], [131.25, 35.0], [131.03, 34.47], [130.5, 34.25], [129.97, 34.47], [129.75, 35.0], [129.85, 35.25], [129.82, 35.32], [129.47, 35.47], [129.25, 36.0], [129.46, 36.5], [129.25, 37.0], [129.35, 37.25], [129.32, 37.32], [129.25, 37.35], [129.18, 37.32], [129.03, 36.97], [128.5, 36.75], [127.97, 36.97], [127.75, 37.5], [127.96, 38.0], [127.82, 38.32], [127.47, 38.47], [127.32, 38.82], [126.97, 38.97], [126.75, 39.5], [126.85, 39.75], [126.75, 40.0], [126.85, 40.25]]]]}, "2024-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.85, 40.25], [126.75, 40.5], [126.97, 41.03], [127.5, 41.25], [127.75, 41.15], [127.82, 41.18], [127.97, 41.53], [128.32, 41.68], [128.47, 42.03], [128.82, 42.18], [128.97, 42.53], [129.32, 42.68], [129.47, 43.03], [130.0, 43.25], [130.53, 43.03], [130.75, 42.5], [130.53, 41.97], [130.18, 41.82], [130.04, 41.5], [130.25, 41.0], [130.03, 40.47], [129.68, 40.32], [129.53, 39.97], [129.0, 39.75], [128.75, 39.85], [128.68, 39.82], [128.65, 39.75], [128.75, 39.5], [128.65, 39.25], [128.68, 39.18], [129.0, 39.04], [129.32, 39.18], [129.47, 39.53], [130.0, 39.75], [130.25, 39.65], [130.5, 39.75], [130.75, 39.65], [131.0, 39.75], [131.25, 39.65], [131.32, 39.68], [131.47, 40.03], [132.0, 40.25], [132.25, 40.15], [132.5, 40.25], [133.03, 40.03], [133.25, 39.5], [133.15, 39.25], [133.25, 39.0], [133.15, 38.75], [133.18, 38.68], [133.25, 38.65], [133.5, 38.75], [134.03, 38.53], [134.18, 38.18], [134.25, 38.15], [134.5, 38.25], [134.75, 38.15], [135.0, 38.25], [135.53, 38.03], [135.68, 37.68], [136.03, 37.53], [136.25, 37.0], [136.03, 36.47], [135.5, 36.25], [135.25, 36.35], [135.0, 36.25], [134.75, 36.35], [134.68, 36.32], [134.53, 35.97], [134.0, 35.75], [133.75, 35.85], [133.5, 35.75], [133.2, 35.88], [133.03, 35.47], [132.68, 35.32], [132.53, 34.97], [132.0, 34.75], [131.75, 34.85], [131.68, 34.82], [131.53, 34.47], [131.18, 34.32], [131.03, 33.97], [130.5, 33.75], [130.25, 33.85], [130.18, 33.82], [130.03, 33.47], [129.5, 33.25], [128.97, 33.47], [128.75, 34.0], [128.97, 34.53], [129.32, 34.68], [129.47, 35.03], [129.82, 35.18], [129.85, 35.25], [129.82, 35.32], [129.47, 35.47], [129.25, 36.0], [129.46, 36.5], [129.25, 37.0], [129.35, 37.25], [129.32, 37.32], [129.25, 37.35], [129.18, 37.32], [129.03, 36.97], [128.5, 36.75], [127.97, 36.97], [127.75, 37.5], [127.96, 38.0], [127.82, 38.32], [127.47, 38.47], [127.32, 38.82], [126.97, 38.97], [126.75, 39.5], [126.85, 39.75], [126.75, 40.0], [126.85, 40.25]]]]}, "2024-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.85, 35.25], [129.82, 35.32], [129.47, 35.47], [129.25, 36.0], [129.47, 36.53], [129.82, 36.68], [129.85, 36.75], [129.75, 37.0], [129.85, 37.25], [129.75, 37.5], [129.97, 38.03], [130.32, 38.18], [130.35, 38.25], [130.25, 38.5], [130.47, 39.03], [131.0, 39.25], [131.5, 39.04], [132.0, 39.25], [132.25, 39.15], [132.5, 39.25], [133.03, 39.03], [133.18, 38.68], [133.25, 38.65], [133.5, 38.75], [134.03, 38.53], [134.18, 38.18], [134.25, 38.15], [134.5, 38.25], [134.75, 38.15], [135.0, 38.25], [135.53, 38.03], [135.68, 37.68], [136.03, 37.53], [136.25, 37.0], [136.03, 36.47], [135.5, 36.25], [135.25, 36.35], [135.0, 36.25], [134.75, 36.35], [134.68, 36.32], [134.53, 35.97], [134.0, 35.75], [133.75, 35.85], [133.5, 35.75], [133.2, 35.88], [133.03, 35.47], [132.68, 35.32], [132.53, 34.97], [132.0, 34.75], [131.75, 34.85], [131.68, 34.82], [131.53, 34.47], [131.18, 34.32], [131.03, 33.97], [130.5, 33.75], [130.25, 33.85], [130.18, 33.82], [130.03, 33.47], [129.5, 33.25], [128.97, 33.47], [128.75, 34.0], [128.97, 34.53], [129.32, 34.68], [129.47, 35.03], [129.82, 35.18], [129.85, 35.25]]], [[[127.97, 36.97], [127.75, 37.5], [127.97, 38.03], [128.5, 38.25], [129.03, 38.03], [129.25, 37.5], [129.03, 36.97], [128.5, 36.75], [127.97, 36.97]]]]}, "2024-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.82, 35.18], [129.97, 35.53], [130.5, 35.75], [130.75, 35.65], [130.82, 35.68], [130.85, 35.75], [130.75, 36.0], [130.97, 36.53], [131.32, 36.68], [131.47, 37.03], [132.0, 37.25], [132.25, 37.15], [132.5, 37.25], [132.8, 37.13], [132.97, 37.53], [133.5, 37.75], [133.75, 37.65], [134.0, 37.75], [134.25, 37.65], [134.5, 37.75], [134.75, 37.65], [135.0, 37.75], [135.25, 37.65], [135.5, 37.75], [136.03, 37.53], [136.25, 37.0], [136.03, 36.47], [135.5, 36.25], [135.25, 36.35], [135.0, 36.25], [134.75, 36.35], [134.68, 36.32], [134.53, 35.97], [134.0, 35.75], [133.75, 35.85], [133.5, 35.75], [133.2, 35.88], [133.03, 35.47], [132.68, 35.32], [132.53, 34.97], [132.0, 34.75], [131.75, 34.85], [131.68, 34.82], [131.53, 34.47], [131.18, 34.32], [131.03, 33.97], [130.5, 33.75], [130.25, 33.85], [130.18, 33.82], [130.03, 33.47], [129.5, 33.25], [128.97, 33.47], [128.75, 34.0], [128.97, 34.53], [129.32, 34.68], [129.47, 35.03], [129.82, 35.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.387093451572525}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.387015097806116}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.987556459252573, 15.701921738933663, 16.302413124573718, 16.58015055667056, 16.836914640769976]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.481000383692674, 18.697788079157192, 20.52344412684971, 18.704984730677268, 18.02865765595908]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8452837119156875, 3.5347024769241715, 3.6722852188475046, 2.800806289177286, 2.1264174807349896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.952187168260082, 8.350930806010012, 9.387093451572525, 4.749438061959097, 2.8381758962457866]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6620313135073495, 1.7396952474710425, 1.9195572926770863, 1.8356959633400898, 1.4270767656173486]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1373539042076657, 2.2258609209162605, 2.695073180572625, 2.5451963617414872, 1.6771917440714088]}}