{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:05.673517", "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": "2023-Nov-17_to_2023-Nov-19_105.5_14.5"}, "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": 2023110000399}, "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 17 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 19 2023"}, "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": 53858.92060653941}, "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", "Lao People's Democratic Republic", "Thailand"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "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": 14.5}, "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": 105.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 102.5}, "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": 14.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[102.5, 15.25], [102.75, 15.15], [103.0, 15.25], [103.25, 15.15], [103.5, 15.25], [103.75, 15.15], [104.0, 15.25], [104.25, 15.15], [104.5, 15.25], [104.75, 15.15], [104.82, 15.18], [104.97, 15.53], [105.32, 15.68], [105.47, 16.03], [106.0, 16.25], [106.53, 16.03], [106.68, 15.68], [106.75, 15.65], [107.0, 15.75], [107.53, 15.53], [107.75, 15.0], [107.65, 14.75], [107.75, 14.5], [107.53, 13.97], [107.0, 13.75], [106.47, 13.97], [106.32, 14.32], [106.25, 14.35], [106.18, 14.32], [106.15, 14.25], [106.25, 14.0], [106.03, 13.47], [105.5, 13.25], [105.25, 13.35], [105.0, 13.25], [104.47, 13.47], [104.32, 13.82], [104.25, 13.85], [104.18, 13.82], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [101.97, 13.47], [101.75, 14.0], [101.85, 14.25], [101.75, 14.5], [101.97, 15.03], [102.5, 15.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.75, 14.5], [101.97, 15.03], [102.5, 15.25], [102.75, 15.15], [103.0, 15.25], [103.25, 15.15], [103.5, 15.25], [103.75, 15.15], [104.0, 15.25], [104.25, 15.15], [104.5, 15.25], [104.75, 15.15], [104.82, 15.18], [104.97, 15.53], [105.32, 15.68], [105.47, 16.03], [106.0, 16.25], [106.53, 16.03], [106.68, 15.68], [106.75, 15.65], [107.0, 15.75], [107.53, 15.53], [107.75, 15.0], [107.65, 14.75], [107.75, 14.5], [107.53, 13.97], [107.0, 13.75], [106.47, 13.97], [106.32, 14.32], [106.25, 14.35], [106.18, 14.32], [106.15, 14.25], [106.25, 14.0], [106.03, 13.47], [105.5, 13.25], [105.25, 13.35], [105.0, 13.25], [104.47, 13.47], [104.32, 13.82], [104.25, 13.85], [104.18, 13.82], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [101.97, 13.47], [101.75, 14.0], [101.85, 14.25], [101.75, 14.5]]]]}, "2023-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.75, 14.5], [101.97, 15.03], [102.5, 15.25], [102.75, 15.15], [103.0, 15.25], [103.25, 15.15], [103.5, 15.25], [103.75, 15.15], [104.0, 15.25], [104.25, 15.15], [104.5, 15.25], [104.75, 15.15], [104.82, 15.18], [104.97, 15.53], [105.32, 15.68], [105.47, 16.03], [106.0, 16.25], [106.53, 16.03], [106.68, 15.68], [106.75, 15.65], [107.0, 15.75], [107.53, 15.53], [107.75, 15.0], [107.65, 14.75], [107.75, 14.5], [107.53, 13.97], [107.0, 13.75], [106.47, 13.97], [106.32, 14.32], [106.25, 14.35], [106.18, 14.32], [106.15, 14.25], [106.25, 14.0], [106.03, 13.47], [105.5, 13.25], [105.25, 13.35], [105.0, 13.25], [104.47, 13.47], [104.32, 13.82], [104.25, 13.85], [104.18, 13.82], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [101.97, 13.47], [101.75, 14.0], [101.85, 14.25], [101.75, 14.5]]]]}, "2023-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.75, 14.5], [101.97, 15.03], [102.5, 15.25], [102.75, 15.15], [103.0, 15.25], [103.25, 15.15], [103.5, 15.25], [103.75, 15.15], [104.0, 15.25], [104.25, 15.15], [104.5, 15.25], [104.75, 15.15], [104.82, 15.18], [104.97, 15.53], [105.32, 15.68], [105.47, 16.03], [106.0, 16.25], [106.53, 16.03], [106.68, 15.68], [106.75, 15.65], [107.0, 15.75], [107.53, 15.53], [107.75, 15.0], [107.65, 14.75], [107.75, 14.5], [107.53, 13.97], [107.0, 13.75], [106.47, 13.97], [106.32, 14.32], [106.25, 14.35], [106.18, 14.32], [106.15, 14.25], [106.25, 14.0], [106.03, 13.47], [105.5, 13.25], [105.25, 13.35], [105.0, 13.25], [104.47, 13.47], [104.32, 13.82], [104.25, 13.85], [104.18, 13.82], [104.03, 13.47], [103.5, 13.25], [103.25, 13.35], [103.0, 13.25], [102.75, 13.35], [102.5, 13.25], [101.97, 13.47], [101.75, 14.0], [101.85, 14.25], [101.75, 14.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.8479171474450027}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.130103296174509}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.34969133472532, 22.155127357487913, 22.04048616162288]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.6489810108111, 19.66541421977462, 19.844033140060617]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0246194408723346, -3.1618362430409155, -3.2038542046102774]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.8479171474450027, -3.504430476109974, -3.744118806345284]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6909748452093503, -1.7490759877944662, -1.7536676741777426]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.075273383938986, -1.9567863896576352, -2.0808396562982363]}}