{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:59.464822", "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": "2021-Aug-29_to_2021-Sep-02_105.0_-2.5"}, "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": 2021080001116}, "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 29 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 108154.65701652016}, "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": ["Indonesia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": ["South China 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": -2.5}, "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": 105.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 104.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 108.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, -1.5], [103.97, -0.97], [104.5, -0.75], [105.03, 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-2.47], [104.32, -2.32], [104.38, -2.2], [103.97, -2.03], [103.75, -1.5], [103.85, -1.25], [103.75, -1.0], [103.85, -0.75]]]]}, "2021-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.85, -0.75], [103.75, -0.5], [103.97, 0.03], [104.32, 0.18], [104.47, 0.53], [105.0, 0.75], [105.3, 0.63], [105.47, 1.03], [105.82, 1.18], [105.97, 1.53], [106.5, 1.75], [106.75, 1.65], [107.0, 1.75], [107.53, 1.53], [107.75, 1.0], [107.65, 0.75], [107.75, 0.5], [107.65, 0.25], [107.68, 0.18], [108.03, 0.03], [108.18, -0.32], [108.53, -0.47], [108.75, -1.0], [108.53, -1.53], [108.0, -1.75], [107.5, -1.54], [107.18, -1.68], [107.03, -2.03], [106.63, -2.2], [106.75, -2.5], [106.53, -3.03], [106.18, -3.18], [106.03, -3.53], [105.5, -3.75], [105.25, -3.65], [105.0, -3.75], [104.75, -3.65], [104.5, -3.75], [103.97, -3.53], [103.75, -3.0], [103.97, -2.47], [104.32, -2.32], [104.35, -2.25], [104.32, -2.18], [103.97, -2.03], [103.75, -1.5], [103.85, -1.25], [103.75, -1.0], [103.85, 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"Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9728531817073722, -1.5351228252485176, -1.943916981025432, -2.1333653780405344, -1.9189268798012957]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3138999077073983, -1.8694496460005694, -2.5282078802953896, -2.763216650006892, -2.594701472452663]}}