{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:41.838997", "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": "2017-Apr-05_to_2017-Apr-08_135.0_35.5"}, "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": 2017040001399}, "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 05 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 50374.102474278334}, "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": ["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": 35.5}, "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": 135.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 137.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, 34.97], [133.25, 35.5], [133.47, 36.03], [134.0, 36.25], [134.25, 36.15], [134.32, 36.18], [134.47, 36.53], [135.0, 36.75], [135.25, 36.65], [135.32, 36.68], [135.47, 37.03], [136.0, 37.25], [136.25, 37.15], [136.5, 37.25], [137.03, 37.03], [137.25, 36.5], [137.15, 36.25], [137.25, 36.0], [137.03, 35.47], [136.68, 35.32], [136.53, 34.97], [136.0, 34.75], [135.75, 34.85], [135.68, 34.82], [135.53, 34.47], [135.0, 34.25], [134.47, 34.47], [134.32, 34.82], [134.25, 34.85], [134.0, 34.75], [133.47, 34.97]]]]}, "2017-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, 34.97], [133.25, 35.5], [133.47, 36.03], [134.0, 36.25], [134.25, 36.15], [134.32, 36.18], [134.47, 36.53], [135.0, 36.75], [135.25, 36.65], [135.32, 36.68], [135.47, 37.03], [136.0, 37.25], [136.25, 37.15], [136.5, 37.25], [137.03, 37.03], [137.25, 36.5], [137.15, 36.25], [137.25, 36.0], [137.15, 35.75], [137.18, 35.68], [137.53, 35.53], [137.75, 35.0], [137.53, 34.47], [137.18, 34.32], [137.03, 33.97], [136.5, 33.75], [136.25, 33.85], [136.0, 33.75], [135.75, 33.85], [135.5, 33.75], [134.97, 33.97], [134.82, 34.32], [134.47, 34.47], [134.32, 34.82], [134.25, 34.85], [134.0, 34.75], [133.47, 34.97]]]]}, "2017-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, 34.97], [133.25, 35.5], [133.47, 36.03], [134.0, 36.25], [134.25, 36.15], [134.32, 36.18], [134.47, 36.53], [135.0, 36.75], [135.25, 36.65], [135.32, 36.68], [135.47, 37.03], [136.0, 37.25], [136.25, 37.15], [136.5, 37.25], [137.03, 37.03], [137.25, 36.5], [137.15, 36.25], [137.25, 36.0], [137.15, 35.75], [137.18, 35.68], [137.53, 35.53], [137.75, 35.0], [137.53, 34.47], [137.18, 34.32], [137.03, 33.97], [136.5, 33.75], [136.25, 33.85], [136.0, 33.75], [135.75, 33.85], [135.5, 33.75], [134.97, 33.97], [134.82, 34.32], [134.47, 34.47], [134.32, 34.82], [134.25, 34.85], [134.0, 34.75], [133.47, 34.97]]]]}, "2017-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, 34.97], [133.25, 35.5], [133.47, 36.03], [134.0, 36.25], [134.25, 36.15], [134.5, 36.25], [134.75, 36.15], [135.0, 36.25], [135.25, 36.15], [135.32, 36.18], [135.47, 36.53], [135.82, 36.68], [135.97, 37.03], [136.5, 37.25], [137.03, 37.03], [137.25, 36.5], [137.15, 36.25], [137.25, 36.0], [137.15, 35.75], [137.18, 35.68], [137.53, 35.53], [137.75, 35.0], [137.53, 34.47], [137.18, 34.32], [137.03, 33.97], [136.5, 33.75], [136.25, 33.85], [136.0, 33.75], [135.75, 33.85], [135.5, 33.75], [134.97, 33.97], [134.82, 34.32], [134.47, 34.47], [134.32, 34.82], [134.25, 34.85], [134.0, 34.75], [133.47, 34.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.4614686159542885}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.677741163868093}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.847366246724334, 15.548363039468029, 15.925656839940018, 16.624295055141317]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.964153702197734, 17.824667080787606, 18.643626971173035, 18.900546252529068]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.4210501809608145, 4.564517337121407, 4.626484178597801, 5.052441636528499]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.040538183702381, 5.661770290469747, 6.298734957761155, 6.4614686159542885]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.564702840593483, 1.5996850111359422, 1.6043543516892433, 1.6624528102840952]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8054461525495902, 2.0218696999971786, 1.8618319834989832, 1.8937826139353877]}}