{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:43.970935", "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": "2014-Feb-19_to_2014-Feb-22_103.0_15.0"}, "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": 2014020000851}, "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": "February 19 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2014"}, "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": 116288.78757352558}, "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", "Thailand"]}, "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": 15.0}, "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": 103.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "103.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 102.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.35, 15.75], [102.25, 16.0], [102.47, 16.53], [102.82, 16.68], [102.97, 17.03], [103.5, 17.25], [103.75, 17.15], [104.0, 17.25], [104.25, 17.15], [104.5, 17.25], [104.75, 17.15], [105.0, 17.25], [105.25, 17.15], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.53, 17.03], [106.68, 16.68], [107.03, 16.53], [107.25, 16.0], [107.03, 15.47], [106.68, 15.32], [106.54, 15.0], [106.75, 14.5], [106.53, 13.97], [106.0, 13.75], [105.75, 13.85], [105.68, 13.82], [105.53, 13.47], [105.18, 13.32], [105.03, 12.97], [104.5, 12.75], [103.97, 12.97], [103.82, 13.32], [103.75, 13.35], [103.5, 13.25], [102.97, 13.47], [102.75, 14.0], [102.85, 14.25], [102.82, 14.32], [102.47, 14.47], [102.25, 15.0], [102.35, 15.25], [102.25, 15.5], [102.35, 15.75]]]]}, "2014-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.35, 15.75], [102.25, 16.0], [102.47, 16.53], [102.82, 16.68], [102.97, 17.03], [103.5, 17.25], [103.75, 17.15], [104.0, 17.25], [104.25, 17.15], [104.5, 17.25], [104.75, 17.15], [105.0, 17.25], [105.25, 17.15], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.53, 17.03], [106.68, 16.68], [107.03, 16.53], [107.25, 16.0], [107.03, 15.47], [106.68, 15.32], [106.54, 15.0], [106.75, 14.5], [106.53, 13.97], [106.0, 13.75], [105.75, 13.85], [105.68, 13.82], [105.53, 13.47], [105.18, 13.32], [105.03, 12.97], [104.68, 12.82], [104.53, 12.47], [104.0, 12.25], [103.47, 12.47], [103.25, 13.0], [103.38, 13.3], [102.97, 13.47], [102.75, 14.0], [102.85, 14.25], [102.82, 14.32], [102.47, 14.47], [102.25, 15.0], [102.35, 15.25], [102.25, 15.5], [102.35, 15.75]]]]}, "2014-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.35, 15.75], [102.25, 16.0], [102.47, 16.53], [102.82, 16.68], [102.97, 17.03], [103.5, 17.25], [103.75, 17.15], [104.0, 17.25], [104.25, 17.15], [104.5, 17.25], [104.75, 17.15], [105.0, 17.25], [105.25, 17.15], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.53, 17.03], [106.68, 16.68], [107.03, 16.53], [107.25, 16.0], [107.03, 15.47], [106.68, 15.32], [106.54, 15.0], [106.75, 14.5], [106.53, 13.97], [106.0, 13.75], [105.75, 13.85], [105.68, 13.82], [105.53, 13.47], [105.18, 13.32], [105.03, 12.97], [104.68, 12.82], [104.53, 12.47], [104.0, 12.25], [103.47, 12.47], [103.25, 13.0], [103.38, 13.3], [102.97, 13.47], [102.75, 14.0], [102.85, 14.25], [102.82, 14.32], [102.47, 14.47], [102.25, 15.0], [102.35, 15.25], [102.25, 15.5], [102.35, 15.75]]]]}, "2014-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.0, 13.75], [104.53, 13.53], [104.75, 13.0], [104.53, 12.47], [104.0, 12.25], [103.47, 12.47], [103.25, 13.0], [103.47, 13.53], [104.0, 13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.112136372193106}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.730771705340759}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.314884543775236, 19.090450725366793, 21.768610536229346, 26.96280072564457]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.673967496034322, 16.746887476168638, 18.907495824365412, 26.96280072564457]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.079334716472542, -7.400890381941884, -4.799953936149825, -1.6526418933353284]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.254285729572189, -10.112136372193106, -6.622785889775969, -1.6526418933353284]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.179924458414206, -3.305498759538146, -2.093905715020456, -1.340643750387409]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.949333283243695, -4.265428540138616, -3.328410340996169, -1.340643750387409]}}