{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:34.298358", "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-Mar-14_to_2021-Mar-18_106.5_11.0"}, "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": 2021030000589}, "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": "March 14 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 18 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": 54626.695075433396}, "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": ["Cambodia", "Vietnam"]}, "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": []}, "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": 11.0}, "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": 106.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "106.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 105.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, 10.53], [105.5, 10.75], [105.75, 10.65], [105.88, 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[107.15, 10.25], [107.25, 10.0], [107.03, 9.47], [106.68, 9.32], [106.53, 8.97], [106.0, 8.75], [105.75, 8.85], [105.5, 8.75], [104.97, 8.97], [104.75, 9.5], [104.85, 9.75], [104.75, 10.0], [104.97, 10.53]]]]}, "2021-03-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, 10.53], [105.32, 10.68], [105.35, 10.75], [105.25, 11.0], [105.35, 11.25], [105.32, 11.32], [104.97, 11.47], [104.75, 12.0], [104.97, 12.53], [105.5, 12.75], [105.75, 12.65], [106.0, 12.75], [106.25, 12.65], [106.5, 12.75], [106.75, 12.65], [107.0, 12.75], [107.53, 12.53], [107.75, 12.0], [107.65, 11.75], [107.68, 11.68], [108.03, 11.53], [108.25, 11.0], [108.03, 10.47], [107.5, 10.25], [107.25, 10.35], [107.18, 10.32], [107.15, 10.25], [107.25, 10.0], [107.03, 9.47], [106.68, 9.32], [106.53, 8.97], [106.0, 8.75], [105.75, 8.85], [105.5, 8.75], [104.97, 8.97], [104.75, 9.5], [104.85, 9.75], [104.75, 10.0], [104.97, 10.53]]]]}, "2021-03-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.97, 10.53], [105.32, 10.68], [105.35, 10.75], [105.25, 11.0], [105.35, 11.25], [105.32, 11.32], [104.97, 11.47], [104.75, 12.0], [104.97, 12.53], [105.5, 12.75], [105.75, 12.65], [106.0, 12.75], [106.25, 12.65], [106.5, 12.75], [106.75, 12.65], [107.0, 12.75], [107.53, 12.53], [107.75, 12.0], [107.65, 11.75], [107.68, 11.68], [108.03, 11.53], [108.25, 11.0], [108.03, 10.47], [107.5, 10.25], [107.25, 10.35], [107.18, 10.32], [107.15, 10.25], [107.25, 10.0], [107.03, 9.47], [106.68, 9.32], [106.53, 8.97], [106.0, 8.75], [105.75, 8.85], [105.5, 8.75], [104.97, 8.97], [104.75, 9.5], [104.85, 9.75], [104.75, 10.0], [104.97, 10.53]]]]}, "2021-03-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.82, 10.68], [105.85, 10.75], [105.75, 11.0], [105.97, 11.53], [106.5, 11.75], [107.03, 11.53], [107.25, 11.0], [107.15, 10.75], [107.25, 10.5], [107.15, 10.25], [107.25, 10.0], [107.03, 9.47], [106.68, 9.32], [106.53, 8.97], [106.0, 8.75], [105.75, 8.85], 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