{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:36.065963", "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": "2022-Oct-19_to_2022-Oct-21_106.5_20.0"}, "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": 2022100000769}, "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": "October 19 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2022"}, "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": "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": 87119.09009553683}, "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": ["Viet Nam"]}, "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": 20.0}, "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": 104.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[103.97, 21.03], [104.32, 21.18], [104.35, 21.25], [104.25, 21.5], [104.47, 22.03], [104.82, 22.18], [104.85, 22.25], [104.75, 22.5], [104.97, 23.03], [105.5, 23.25], [106.03, 23.03], [106.25, 22.5], [106.15, 22.25], [106.18, 22.18], [106.25, 22.15], [106.5, 22.25], [107.03, 22.03], [107.18, 21.68], [107.53, 21.53], [107.75, 21.0], [107.53, 20.47], [107.18, 20.32], [107.15, 20.25], [107.25, 20.0], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.15, 17.75], [107.18, 17.68], [107.53, 17.53], [107.75, 17.0], [107.53, 16.47], [107.0, 16.25], [106.75, 16.35], [106.5, 16.25], [105.97, 16.47], [105.82, 16.82], [105.47, 16.97], [105.25, 17.5], [105.35, 17.75], [105.25, 18.0], [105.35, 18.25], [105.25, 18.5], [105.35, 18.75], [105.3, 18.88], [105.0, 18.75], [104.47, 18.97], [104.25, 19.5], [104.35, 19.75], [104.32, 19.82], [103.97, 19.97], [103.75, 20.5], [103.97, 21.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 19.97], [103.75, 20.5], [103.97, 21.03], [104.32, 21.18], [104.35, 21.25], [104.25, 21.5], [104.47, 22.03], [104.82, 22.18], [104.85, 22.25], [104.75, 22.5], [104.97, 23.03], [105.5, 23.25], [106.03, 23.03], [106.25, 22.5], [106.15, 22.25], [106.18, 22.18], [106.25, 22.15], [106.5, 22.25], [107.03, 22.03], [107.18, 21.68], [107.53, 21.53], [107.75, 21.0], [107.53, 20.47], [107.18, 20.32], [107.15, 20.25], [107.25, 20.0], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.15, 17.75], [107.18, 17.68], [107.53, 17.53], [107.75, 17.0], [107.53, 16.47], [107.0, 16.25], [106.75, 16.35], [106.5, 16.25], [105.97, 16.47], [105.82, 16.82], [105.47, 16.97], [105.25, 17.5], [105.35, 17.75], [105.25, 18.0], [105.35, 18.25], [105.25, 18.5], [105.35, 18.75], [105.3, 18.88], [105.0, 18.75], [104.47, 18.97], [104.25, 19.5], [104.35, 19.75], [104.32, 19.82], [103.97, 19.97]]]]}, "2022-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 19.97], [103.75, 20.5], [103.97, 21.03], [104.32, 21.18], [104.35, 21.25], [104.25, 21.5], [104.47, 22.03], [104.82, 22.18], [104.85, 22.25], [104.75, 22.5], [104.97, 23.03], [105.5, 23.25], [106.03, 23.03], [106.25, 22.5], [106.15, 22.25], [106.18, 22.18], [106.25, 22.15], [106.5, 22.25], [107.03, 22.03], [107.18, 21.68], [107.53, 21.53], [107.75, 21.0], [107.53, 20.47], [107.18, 20.32], [107.15, 20.25], [107.25, 20.0], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.15, 17.75], [107.18, 17.68], [107.53, 17.53], [107.75, 17.0], [107.53, 16.47], [107.0, 16.25], [106.75, 16.35], [106.5, 16.25], [105.97, 16.47], [105.82, 16.82], [105.47, 16.97], [105.25, 17.5], [105.35, 17.75], [105.25, 18.0], [105.35, 18.25], [105.25, 18.5], [105.35, 18.75], [105.3, 18.88], [105.0, 18.75], [104.47, 18.97], [104.25, 19.5], [104.35, 19.75], [104.32, 19.82], [103.97, 19.97]]]]}, "2022-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.97, 19.97], [103.75, 20.5], [103.97, 21.03], [104.32, 21.18], [104.35, 21.25], [104.25, 21.5], [104.47, 22.03], [104.82, 22.18], [104.85, 22.25], [104.75, 22.5], [104.97, 23.03], [105.5, 23.25], [106.03, 23.03], [106.25, 22.5], [106.15, 22.25], [106.18, 22.18], [106.25, 22.15], [106.5, 22.25], [107.03, 22.03], [107.18, 21.68], [107.53, 21.53], [107.75, 21.0], [107.53, 20.47], [107.18, 20.32], [107.15, 20.25], [107.25, 20.0], [107.03, 19.47], [106.68, 19.32], [106.65, 19.25], [106.75, 19.0], [106.65, 18.75], [106.68, 18.68], [107.03, 18.53], [107.25, 18.0], [107.15, 17.75], [107.18, 17.68], [107.53, 17.53], [107.75, 17.0], [107.53, 16.47], [107.0, 16.25], [106.75, 16.35], [106.5, 16.25], [105.97, 16.47], [105.82, 16.82], [105.47, 16.97], [105.25, 17.5], [105.35, 17.75], [105.25, 18.0], [105.35, 18.25], [105.25, 18.5], [105.35, 18.75], [105.3, 18.88], [105.0, 18.75], [104.47, 18.97], [104.25, 19.5], [104.35, 19.75], [104.32, 19.82], [103.97, 19.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.109536068846182}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.2232427494176354}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.722591086770308, 18.659835302374574, 21.107412484148426]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.56083131921463, 15.509086593792802, 18.303814366986046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.3583808290155766, -5.400795781560322, -2.9105516376770084]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.717203252990714, -7.109536068846182, -4.242686425337467]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.46460633269893, -2.952448113727785, -1.5996634955770395]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.7619816832628508, -3.455342806717119, -2.1023721670602447]}}