{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:19.660957", "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": "2018-Mar-08_to_2018-Mar-11_106.5_15.5"}, "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": 2018030000344}, "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 08 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2018"}, "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": 200234.13971551912}, "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", "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": 15.5}, "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": 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": 100.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 108.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "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": {"2018-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[104.75, 16.5], [104.97, 17.03], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.25, 17.15], [106.5, 17.25], [107.03, 17.03], [107.18, 16.68], [107.53, 16.53], [107.75, 16.0], [107.53, 15.47], [107.18, 15.32], [107.03, 14.97], [106.5, 14.75], [106.25, 14.85], [106.0, 14.75], [105.75, 14.85], [105.5, 14.75], [105.25, 14.85], [105.0, 14.75], [104.47, 14.97], [104.25, 15.5], [104.47, 16.03], [104.82, 16.18], [104.85, 16.25], [104.75, 16.5]]]]}, "2018-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 16.03], [100.82, 16.18], [100.97, 16.53], [101.5, 16.75], [102.03, 16.53], [102.18, 16.18], [102.25, 16.15], [102.5, 16.25], [102.75, 16.15], [103.0, 16.25], [103.25, 16.15], [103.5, 16.25], [103.75, 16.15], [104.0, 16.25], [104.25, 16.15], [104.5, 16.25], [104.75, 16.15], [104.82, 16.18], [104.85, 16.25], [104.75, 16.5], [104.97, 17.03], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.25, 17.15], [106.5, 17.25], [107.03, 17.03], [107.18, 16.68], [107.53, 16.53], [107.68, 16.18], [108.03, 16.03], [108.18, 15.68], [108.53, 15.53], [108.68, 15.18], [109.03, 15.03], [109.25, 14.5], [109.15, 14.25], [109.25, 14.0], [109.03, 13.47], [108.68, 13.32], [108.65, 13.25], [108.75, 13.0], [108.53, 12.47], [108.18, 12.32], [108.03, 11.97], [107.5, 11.75], [107.25, 11.85], [107.0, 11.75], [106.47, 11.97], [106.25, 12.5], [106.35, 12.75], [106.25, 13.0], [106.43, 13.43], [106.0, 13.25], [105.75, 13.35], [105.68, 13.32], [105.53, 12.97], [105.0, 12.75], [104.5, 12.96], [104.0, 12.75], [103.47, 12.97], [103.25, 13.5], [103.35, 13.75], [103.32, 13.82], [103.25, 13.85], [103.0, 13.75], [102.5, 13.96], [102.0, 13.75], [101.47, 13.97], [101.32, 14.32], [101.25, 14.35], [101.0, 14.25], [100.47, 14.47], [100.25, 15.0], [100.35, 15.25], [100.25, 15.5], [100.47, 16.03]]]]}, "2018-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 16.03], [100.82, 16.18], [100.97, 16.53], [101.5, 16.75], [102.03, 16.53], [102.18, 16.18], [102.25, 16.15], [102.5, 16.25], [102.75, 16.15], [103.0, 16.25], [103.25, 16.15], [103.5, 16.25], [103.75, 16.15], [104.0, 16.25], [104.25, 16.15], [104.5, 16.25], [104.75, 16.15], [104.82, 16.18], [104.85, 16.25], [104.75, 16.5], [104.97, 17.03], [105.5, 17.25], [105.75, 17.15], [106.0, 17.25], [106.25, 17.15], [106.5, 17.25], [107.03, 17.03], [107.18, 16.68], [107.53, 16.53], [107.68, 16.18], [108.03, 16.03], [108.18, 15.68], [108.53, 15.53], [108.68, 15.18], [109.03, 15.03], [109.25, 14.5], [109.15, 14.25], [109.25, 14.0], [109.03, 13.47], [108.68, 13.32], [108.65, 13.25], [108.75, 13.0], [108.53, 12.47], [108.18, 12.32], [108.03, 11.97], [107.5, 11.75], [107.25, 11.85], [107.0, 11.75], [106.47, 11.97], [106.25, 12.5], [106.35, 12.75], [106.25, 13.0], [106.43, 13.43], [106.0, 13.25], [105.75, 13.35], [105.68, 13.32], [105.53, 12.97], [105.0, 12.75], [104.5, 12.96], [104.0, 12.75], [103.47, 12.97], [103.25, 13.5], [103.35, 13.75], [103.32, 13.82], [103.25, 13.85], [103.0, 13.75], [102.5, 13.96], [102.0, 13.75], [101.47, 13.97], [101.32, 14.32], [101.25, 14.35], [101.0, 14.25], [100.47, 14.47], [100.25, 15.0], [100.35, 15.25], [100.25, 15.5], [100.47, 16.03]]]]}, "2018-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[100.47, 16.03], [100.82, 16.18], [100.97, 16.53], [101.5, 16.75], [102.03, 16.53], [102.18, 16.18], [102.25, 16.15], [102.5, 16.25], [102.75, 16.15], [103.0, 16.25], [103.25, 16.15], [103.5, 16.25], [103.75, 16.15], [104.0, 16.25], [104.25, 16.15], [104.5, 16.25], [104.75, 16.15], [105.0, 16.25], [105.25, 16.15], [105.5, 16.25], [105.75, 16.15], [106.0, 16.25], [106.25, 16.15], [106.5, 16.25], [106.75, 16.15], [107.0, 16.25], [107.25, 16.15], [107.5, 16.25], [108.03, 16.03], [108.18, 15.68], [108.53, 15.53], [108.68, 15.18], [109.03, 15.03], [109.25, 14.5], [109.15, 14.25], [109.25, 14.0], [109.03, 13.47], [108.68, 13.32], [108.65, 13.25], [108.75, 13.0], [108.53, 12.47], [108.18, 12.32], [108.03, 11.97], [107.5, 11.75], [107.25, 11.85], [107.0, 11.75], [106.47, 11.97], [106.25, 12.5], [106.35, 12.75], [106.25, 13.0], [106.43, 13.43], [106.0, 13.25], [105.75, 13.35], [105.68, 13.32], [105.53, 12.97], [105.0, 12.75], [104.5, 12.96], [104.0, 12.75], [103.47, 12.97], [103.25, 13.5], [103.35, 13.75], [103.32, 13.82], [103.25, 13.85], [103.0, 13.75], [102.5, 13.96], [102.0, 13.75], [101.47, 13.97], [101.32, 14.32], [101.25, 14.35], [101.0, 14.25], [100.47, 14.47], [100.25, 15.0], [100.35, 15.25], [100.25, 15.5], [100.47, 16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.271917544980965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.073089459781213}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.694990416203495, 22.380479141820388, 22.72391425709492, 24.699867203340716]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.38691329650652, 14.318385248511845, 13.783252176660483, 16.095519548834886]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.871944593186423, -4.774447464177499, -4.506457326435774, -2.8428554626501503]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.774415594776883, -7.271917544980965, -5.738372045120059, -4.0016794318804045]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6147705762672127, -2.503737798805104, -2.5202492351931296, -1.61573994221342]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7791442928045358, -3.540962826488264, -3.094265394444404, -2.0145772194939924]}}