{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:41.283859", "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": "2020-Jan-20_to_2020-Jan-23_104.5_26.0"}, "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": 2020010002051}, "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 20 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 2020"}, "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": 58741.14312857898}, "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"]}, "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": []}, "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": 26.0}, "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": 104.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "104.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 102.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.97, 23.97], [101.75, 24.5], [101.97, 25.03], [102.5, 25.25], [103.03, 25.03], [103.25, 24.5], [103.03, 23.97], [102.5, 23.75], [101.97, 23.97]]], [[[104.03, 28.03], [104.18, 27.68], [104.53, 27.53], [104.75, 27.0], [104.63, 26.7], [105.03, 26.53], [105.25, 26.0], [105.03, 25.47], [104.5, 25.25], [103.97, 25.47], [103.75, 26.0], [103.88, 26.3], [103.5, 26.46], [103.0, 26.25], [102.47, 26.47], [102.25, 27.0], [102.47, 27.53], [102.82, 27.68], [102.97, 28.03], [103.5, 28.25], [104.03, 28.03]]]]}, "2020-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.97, 25.03], [102.5, 25.25], [103.0, 25.04], [103.32, 25.18], [103.47, 25.53], [103.82, 25.68], [103.85, 25.75], [103.75, 26.0], [103.85, 26.25], [103.82, 26.32], [103.5, 26.46], [103.0, 26.25], [102.47, 26.47], [102.25, 27.0], [102.47, 27.53], [102.82, 27.68], [102.97, 28.03], [103.5, 28.25], [104.03, 28.03], [104.18, 27.68], [104.53, 27.53], [104.68, 27.18], [105.03, 27.03], [105.25, 26.5], [105.15, 26.25], [105.18, 26.18], [105.53, 26.03], [105.68, 25.68], [105.75, 25.65], [106.0, 25.75], [106.25, 25.65], [106.5, 25.75], [107.03, 25.53], [107.25, 25.0], [107.03, 24.47], [106.5, 24.25], [106.25, 24.35], [106.0, 24.25], [105.75, 24.35], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.68, 23.82], [104.53, 23.47], [104.0, 23.25], [103.75, 23.35], [103.5, 23.25], [103.25, 23.35], [103.0, 23.25], [102.75, 23.35], [102.5, 23.25], [101.97, 23.47], [101.75, 24.0], [101.85, 24.25], [101.75, 24.5], [101.97, 25.03]]]]}, "2020-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.97, 25.03], [102.5, 25.25], [103.0, 25.04], [103.32, 25.18], [103.47, 25.53], [103.82, 25.68], [103.85, 25.75], [103.75, 26.0], [103.85, 26.25], [103.82, 26.32], [103.5, 26.46], [103.0, 26.25], [102.47, 26.47], [102.25, 27.0], [102.47, 27.53], [102.82, 27.68], [102.97, 28.03], [103.5, 28.25], [104.03, 28.03], [104.18, 27.68], [104.53, 27.53], [104.68, 27.18], [105.03, 27.03], [105.25, 26.5], [105.15, 26.25], [105.18, 26.18], [105.53, 26.03], [105.68, 25.68], [105.75, 25.65], [106.0, 25.75], [106.25, 25.65], [106.5, 25.75], [107.03, 25.53], [107.25, 25.0], [107.03, 24.47], [106.5, 24.25], [106.25, 24.35], [106.0, 24.25], [105.75, 24.35], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.68, 23.82], [104.53, 23.47], [104.0, 23.25], [103.75, 23.35], [103.5, 23.25], [103.25, 23.35], [103.0, 23.25], [102.75, 23.35], [102.5, 23.25], [101.97, 23.47], [101.75, 24.0], [101.85, 24.25], [101.75, 24.5], [101.97, 25.03]]]]}, "2020-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.97, 23.47], [101.75, 24.0], [101.97, 24.53], [102.5, 24.75], [102.75, 24.65], [102.82, 24.68], [102.97, 25.03], [103.32, 25.18], [103.47, 25.53], [103.82, 25.68], [103.85, 25.75], [103.75, 26.0], [103.85, 26.25], [103.75, 26.5], [103.97, 27.03], [104.5, 27.25], [105.03, 27.03], [105.25, 26.5], [105.15, 26.25], [105.18, 26.18], [105.53, 26.03], [105.68, 25.68], [105.75, 25.65], [106.0, 25.75], [106.25, 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