{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:51.398225", "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-Aug-07_to_2018-Aug-09_98.0_42.5"}, "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": 2018080001874}, "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": "August 07 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2018"}, "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": 90677.84072944323}, "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": ["China", "Mongolia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.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": []}, "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": 42.5}, "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": 98.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "98.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 94.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.47, 44.03], [95.0, 44.25], [95.25, 44.15], [95.5, 44.25], 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[97.0, 44.25], [97.25, 44.15], [97.5, 44.25], [97.75, 44.15], [97.82, 44.18], [97.97, 44.53], [98.5, 44.75], [98.75, 44.65], [99.0, 44.75], [99.25, 44.65], [99.5, 44.75], [100.03, 44.53], [100.25, 44.0], [100.15, 43.75], [100.25, 43.5], [100.15, 43.25], [100.25, 43.0], [100.15, 42.75], [100.25, 42.5], [100.15, 42.25], [100.25, 42.0], [100.03, 41.47], [99.5, 41.25], [99.25, 41.35], [99.18, 41.32], [99.03, 40.97], [98.5, 40.75], [98.25, 40.85], [98.0, 40.75], [97.47, 40.97], [97.32, 41.32], [97.25, 41.35], [97.0, 41.25], [96.5, 41.46], [96.0, 41.25], [95.47, 41.47], [95.32, 41.82], [94.97, 41.97], [94.82, 42.32], [94.47, 42.47], [94.25, 43.0], [94.35, 43.25], [94.25, 43.5], [94.47, 44.03]]]]}, "2018-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.47, 44.03], [95.0, 44.25], [95.25, 44.15], [95.5, 44.25], [95.75, 44.15], [96.0, 44.25], [96.25, 44.15], [96.5, 44.25], [96.75, 44.15], [97.0, 44.25], [97.25, 44.15], [97.5, 44.25], [97.75, 44.15], [97.82, 44.18], 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t2m.", "value": [28.98426153169612, 30.168927407845104, 29.492691904362573]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.64221750523416, 34.1447237998147, 33.20293453375024]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.438310030380636, 5.809792895090672, 5.39344536137254]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.281902399761918, 6.547268471799839, 6.479976064583184]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4313718375994815, 1.922021234857084, 1.7789333594669003]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6261021600281018, 2.1247385916782746, 2.182494666545361]}}