{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:28.861006", "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-Oct-05_to_2014-Oct-08_101.0_21.0"}, "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": 2014100000255}, "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 05 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 08 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": 69185.64345046552}, "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": ["China", "Laos", "Myanmar", "Vietnam"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "S.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": 21.0}, "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": 101.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "101.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 99.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 103.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.97, 20.97], [98.75, 21.5], [98.97, 22.03], [99.5, 22.25], [99.75, 22.15], [100.0, 22.25], [100.53, 22.03], [100.7, 21.63], [101.0, 21.75], [101.53, 21.53], [101.75, 21.0], [101.53, 20.47], [101.0, 20.25], [100.47, 20.47], [100.3, 20.88], [100.0, 20.75], [99.75, 20.85], [99.5, 20.75], [98.97, 20.97]]]]}, "2014-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 21.75], [98.75, 22.0], [98.97, 22.53], [99.5, 22.75], [99.75, 22.65], [100.0, 22.75], [100.25, 22.65], [100.5, 22.75], [101.0, 22.54], [101.5, 22.75], [101.75, 22.65], [102.0, 22.75], [102.53, 22.53], [102.7, 22.13], [103.0, 22.25], [103.53, 22.03], [103.75, 21.5], [103.53, 20.97], [103.18, 20.82], [103.03, 20.47], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.15, 19.75], [102.25, 19.5], [102.03, 18.97], [101.5, 18.75], [100.97, 18.97], [100.82, 19.32], [100.47, 19.47], [100.25, 20.0], [100.35, 20.25], [100.32, 20.32], [100.0, 20.46], [99.5, 20.25], [98.97, 20.47], [98.75, 21.0], [98.85, 21.25], [98.75, 21.5], [98.85, 21.75]]]]}, "2014-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 21.75], [98.75, 22.0], [98.97, 22.53], [99.5, 22.75], [99.75, 22.65], [100.0, 22.75], [100.25, 22.65], [100.5, 22.75], [101.0, 22.54], [101.5, 22.75], [101.75, 22.65], [102.0, 22.75], [102.53, 22.53], [102.7, 22.13], [103.0, 22.25], [103.53, 22.03], [103.75, 21.5], [103.53, 20.97], [103.18, 20.82], [103.03, 20.47], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.15, 19.75], [102.25, 19.5], [102.03, 18.97], [101.5, 18.75], [100.97, 18.97], [100.82, 19.32], [100.47, 19.47], [100.25, 20.0], [100.35, 20.25], [100.32, 20.32], [100.0, 20.46], [99.5, 20.25], [98.97, 20.47], [98.75, 21.0], [98.85, 21.25], [98.75, 21.5], [98.85, 21.75]]]]}, "2014-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.85, 21.75], [98.75, 22.0], [98.97, 22.53], [99.5, 22.75], [99.75, 22.65], [100.0, 22.75], [100.25, 22.65], [100.5, 22.75], [101.0, 22.54], [101.5, 22.75], [101.75, 22.65], [102.0, 22.75], [102.53, 22.53], [102.7, 22.13], [103.0, 22.25], [103.53, 22.03], [103.75, 21.5], [103.53, 20.97], [103.18, 20.82], [103.03, 20.47], [102.68, 20.32], [102.53, 19.97], [102.18, 19.82], [102.15, 19.75], [102.25, 19.5], [102.03, 18.97], [101.5, 18.75], [100.97, 18.97], [100.82, 19.32], [100.47, 19.47], [100.25, 20.0], [100.35, 20.25], [100.32, 20.32], [100.0, 20.46], [99.5, 20.25], [98.97, 20.47], [98.75, 21.0], [98.85, 21.25], [98.75, 21.5], [98.85, 21.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.7175049621032485}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.916797202576037}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.985923102514278, 21.09379467060097, 20.44208190244541, 20.800382973264675]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.23751813641269, 19.222046855349276, 18.64092603609771, 19.13557929772253]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2661695365151406, -1.7075002795507643, -2.2818501432841933, -1.8423696431507655]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4201656562280505, -2.21511787484485, -2.7175049621032485, -2.312316295995913]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3428328592793115, -1.5937721247316199, -2.036147043424094, -1.5218624022064169]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5423031648245575, -2.010470422635836, -2.432456031105952, -1.856760075498825]}}