{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:50.384197", "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": "2019-Nov-09_to_2019-Nov-12_107.0_12.0"}, "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": 2019110000302}, "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": "November 09 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 12 2019"}, "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": "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": 63315.08798607436}, "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", "Laos", "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": 12.0}, "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": 107.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 107.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.25, 12.5], [103.47, 13.03], [104.0, 13.25], [104.25, 13.15], [104.5, 13.25], [104.75, 13.15], [104.82, 13.18], [104.97, 13.53], [105.5, 13.75], [106.03, 13.53], [106.25, 13.0], [106.15, 12.75], [106.25, 12.5], [106.15, 12.25], [106.18, 12.18], [106.25, 12.15], [106.32, 12.18], [106.47, 12.53], [107.0, 12.75], [107.53, 12.53], [107.75, 12.0], [107.53, 11.47], [107.18, 11.32], [107.03, 10.97], [106.5, 10.75], [106.25, 10.85], [106.0, 10.75], [105.47, 10.97], [105.32, 11.32], [105.25, 11.35], [105.0, 11.25], [104.75, 11.35], [104.5, 11.25], [103.97, 11.47], [103.82, 11.82], [103.47, 11.97], [103.25, 12.5]]]]}, "2019-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.25, 12.5], [103.47, 13.03], [104.0, 13.25], [104.25, 13.15], [104.5, 13.25], [104.75, 13.15], [104.82, 13.18], [104.97, 13.53], [105.32, 13.68], [105.35, 13.75], [105.25, 14.0], [105.47, 14.53], [106.0, 14.75], [106.25, 14.65], [106.5, 14.75], [106.75, 14.65], [107.0, 14.75], [107.53, 14.53], [107.75, 14.0], [107.65, 13.75], [107.75, 13.5], [107.65, 13.25], [107.75, 13.0], [107.54, 12.5], [107.75, 12.0], [107.53, 11.47], [107.18, 11.32], [107.03, 10.97], [106.5, 10.75], [106.25, 10.85], [106.0, 10.75], [105.47, 10.97], [105.32, 11.32], [105.25, 11.35], [105.0, 11.25], [104.75, 11.35], [104.5, 11.25], [103.97, 11.47], [103.82, 11.82], [103.47, 11.97], [103.25, 12.5]]]]}, "2019-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.25, 12.5], [103.47, 13.03], [104.0, 13.25], [104.25, 13.15], [104.5, 13.25], [104.75, 13.15], [104.82, 13.18], [104.97, 13.53], [105.32, 13.68], [105.35, 13.75], [105.25, 14.0], [105.47, 14.53], [106.0, 14.75], [106.25, 14.65], [106.5, 14.75], [106.75, 14.65], [107.0, 14.75], [107.53, 14.53], [107.75, 14.0], [107.65, 13.75], [107.75, 13.5], [107.65, 13.25], [107.75, 13.0], [107.54, 12.5], [107.75, 12.0], [107.53, 11.47], [107.18, 11.32], [107.03, 10.97], [106.5, 10.75], [106.25, 10.85], [106.0, 10.75], [105.47, 10.97], [105.32, 11.32], [105.25, 11.35], [105.0, 11.25], [104.75, 11.35], [104.5, 11.25], [103.97, 11.47], [103.82, 11.82], [103.47, 11.97], [103.25, 12.5]]]]}, "2019-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.25, 14.0], [105.47, 14.53], [106.0, 14.75], [106.25, 14.65], [106.5, 14.75], [106.75, 14.65], [107.0, 14.75], [107.53, 14.53], [107.75, 14.0], [107.65, 13.75], [107.75, 13.5], [107.65, 13.25], [107.75, 13.0], [107.53, 12.47], [107.18, 12.32], [107.15, 12.25], [107.25, 12.0], [107.03, 11.47], [106.5, 11.25], [105.97, 11.47], [105.75, 12.0], [105.85, 12.25], [105.8, 12.37], [105.5, 12.25], [104.97, 12.47], [104.75, 13.0], [104.97, 13.53], [105.32, 13.68], [105.35, 13.75], [105.25, 14.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.3466522716177}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.002079295706541}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.306909374032386, 24.190419955179493, 23.00050990092126, 24.19117319034308]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.374003157577533, 22.108164298410202, 21.225477149999904, 23.418605449100426]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7041436949461295, -2.7743318687780305, -4.029345367913514, -2.7736611191171607]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2248670279785756, -4.525144234182619, -5.3466522716177, -3.397220034300176]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.335812188056398, -1.8777133854301036, -2.6331398648165694, -1.5705606740570952]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.613816897934427, -3.074580647528229, -3.7123055019617484, -2.00749773905602]}}