{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:00.226335", "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": "2010-Jan-19_to_2010-Jan-21_133.0_34.5"}, "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": 2010010002163}, "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": "January 19 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 21 2010"}, "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": 54063.10875658983}, "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": ["Japan"]}, "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": ["Philippine Sea", "Seto Naikai or Inland 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": 34.5}, "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": 133.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 131.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.82, 35.18], [131.97, 35.53], [132.5, 35.75], [132.75, 35.65], [133.0, 35.75], [133.53, 35.53], [133.68, 35.18], [134.03, 35.03], [134.25, 34.5], [134.15, 34.25], [134.18, 34.18], [134.25, 34.15], [134.5, 34.25], [135.03, 34.03], [135.25, 33.5], [135.15, 33.25], [135.25, 33.0], [135.15, 32.75], [135.25, 32.5], [135.15, 32.25], [135.25, 32.0], [135.03, 31.47], [134.5, 31.25], [134.25, 31.35], [134.0, 31.25], [133.47, 31.47], [133.32, 31.82], [132.97, 31.97], [132.75, 32.5], [132.85, 32.75], [132.75, 33.0], [132.88, 33.3], [132.75, 33.35], [132.5, 33.25], [132.25, 33.35], [132.0, 33.25], [131.75, 33.35], [131.5, 33.25], [130.97, 33.47], [130.75, 34.0], [130.97, 34.53], [131.32, 34.68], [131.47, 35.03], [131.82, 35.18]]]]}, "2010-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.82, 35.18], [131.97, 35.53], [132.5, 35.75], [132.75, 35.65], [133.0, 35.75], [133.53, 35.53], [133.68, 35.18], [134.03, 35.03], [134.25, 34.5], [134.15, 34.25], [134.18, 34.18], [134.25, 34.15], [134.5, 34.25], [135.03, 34.03], [135.25, 33.5], [135.15, 33.25], [135.25, 33.0], [135.15, 32.75], [135.25, 32.5], [135.15, 32.25], [135.25, 32.0], [135.03, 31.47], [134.5, 31.25], [134.25, 31.35], [134.0, 31.25], [133.47, 31.47], [133.32, 31.82], [132.97, 31.97], [132.75, 32.5], [132.85, 32.75], [132.75, 33.0], [132.88, 33.3], [132.75, 33.35], [132.5, 33.25], [132.25, 33.35], [132.0, 33.25], [131.75, 33.35], [131.5, 33.25], [130.97, 33.47], [130.75, 34.0], [130.97, 34.53], [131.32, 34.68], [131.47, 35.03], [131.82, 35.18]]]]}, "2010-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.82, 35.18], [131.97, 35.53], [132.5, 35.75], [132.75, 35.65], [133.0, 35.75], [133.53, 35.53], [133.68, 35.18], [134.03, 35.03], [134.25, 34.5], [134.15, 34.25], [134.18, 34.18], [134.25, 34.15], [134.5, 34.25], [135.03, 34.03], [135.25, 33.5], [135.15, 33.25], [135.25, 33.0], [135.15, 32.75], [135.25, 32.5], [135.15, 32.25], [135.25, 32.0], [135.03, 31.47], [134.5, 31.25], [134.25, 31.35], [134.0, 31.25], [133.47, 31.47], [133.32, 31.82], [132.97, 31.97], [132.75, 32.5], [132.85, 32.75], [132.75, 33.0], [132.88, 33.3], [132.75, 33.35], [132.5, 33.25], [132.25, 33.35], [132.0, 33.25], [131.75, 33.35], [131.5, 33.25], [130.97, 33.47], [130.75, 34.0], [130.97, 34.53], [131.32, 34.68], [131.47, 35.03], [131.82, 35.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.27463958270306}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.789942531214061}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.414231447107682, 15.090851929757662, 11.032212072805748]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.420665593589945, 18.86213190872934, 16.35698815494021]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.524519707141578, 7.343017719126113, 3.5022901673744915]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.426878892148807, 9.27463958270306, 4.126378625902362]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.534211136279558, 3.235961274733259, 1.4752078582835588]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8382325258055499, 3.9353690255583387, 1.8928435913187742]}}