{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:35.193181", "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": "2019-Sep-15_to_2019-Sep-17_137.5_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": 2019090002066}, "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 15 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 17 2019"}, "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": 50745.59930182064}, "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"]}, "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": 137.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "137.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 138.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, 34.53], [135.5, 34.75], [135.75, 34.65], [135.82, 34.68], [135.85, 34.75], [135.75, 35.0], [135.85, 35.25], [135.75, 35.5], [135.97, 36.03], [136.32, 36.18], [136.47, 36.53], [137.0, 36.75], [137.25, 36.65], [137.5, 36.75], [138.03, 36.53], [138.18, 36.18], [138.53, 36.03], [138.68, 35.68], [139.03, 35.53], [139.25, 35.0], [139.03, 34.47], [138.68, 34.32], [138.53, 33.97], [138.0, 33.75], [137.75, 33.85], [137.68, 33.82], [137.53, 33.47], [137.0, 33.25], [136.75, 33.35], [136.5, 33.25], [136.25, 33.35], [136.18, 33.32], [136.03, 32.97], [135.5, 32.75], [134.97, 32.97], [134.75, 33.5], [134.85, 33.75], [134.75, 34.0], [134.97, 34.53]]]]}, "2019-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, 34.53], [135.5, 34.75], [135.75, 34.65], [135.82, 34.68], [135.85, 34.75], [135.75, 35.0], [135.85, 35.25], [135.75, 35.5], [135.97, 36.03], [136.32, 36.18], [136.47, 36.53], [137.0, 36.75], [137.25, 36.65], [137.5, 36.75], [138.03, 36.53], [138.18, 36.18], [138.53, 36.03], [138.68, 35.68], [139.03, 35.53], [139.25, 35.0], [139.03, 34.47], [138.68, 34.32], [138.53, 33.97], [138.0, 33.75], [137.75, 33.85], [137.68, 33.82], [137.53, 33.47], [137.0, 33.25], [136.75, 33.35], [136.5, 33.25], [136.25, 33.35], [136.18, 33.32], [136.03, 32.97], [135.5, 32.75], [134.97, 32.97], [134.75, 33.5], [134.85, 33.75], [134.75, 34.0], [134.97, 34.53]]]]}, "2019-09-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, 34.53], [135.5, 34.75], [135.75, 34.65], [135.82, 34.68], [135.85, 34.75], [135.75, 35.0], [135.85, 35.25], [135.75, 35.5], [135.97, 36.03], [136.32, 36.18], [136.47, 36.53], [137.0, 36.75], [137.25, 36.65], [137.5, 36.75], [138.03, 36.53], [138.18, 36.18], [138.53, 36.03], [138.68, 35.68], [139.03, 35.53], [139.25, 35.0], [139.03, 34.47], [138.68, 34.32], [138.53, 33.97], [138.0, 33.75], [137.75, 33.85], [137.68, 33.82], [137.53, 33.47], [137.0, 33.25], [136.75, 33.35], [136.5, 33.25], [136.25, 33.35], [136.18, 33.32], [136.03, 32.97], [135.5, 32.75], [134.97, 32.97], [134.75, 33.5], [134.85, 33.75], [134.75, 34.0], [134.97, 34.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.02808847187822}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.035710372763337}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.810432872817216, 25.93663730323982, 25.526088894836278]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.639733641983128, 28.0738453576663, 27.83419124267266]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9320438075714748, 3.2040393380994003, 2.971047972619135]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.0345329772990794, 5.02808847187822, 4.301104613718621]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6378922515689098, 1.8027698486201182, 1.679462899110965]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0586415466398647, 2.4712573473740997, 2.1901993156692985]}}