{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:46.362289", "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": "2016-Jul-12_to_2016-Jul-14_100.0_45.5"}, "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": 2016070000470}, "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": "July 12 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 14 2016"}, "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": 54353.87876816315}, "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": ["Mongolia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "E.Siberia"]}, "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": 45.5}, "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": 100.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "100.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 97.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 102.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.25, 45.5], [97.47, 46.03], [98.0, 46.25], [98.25, 46.15], [98.32, 46.18], [98.47, 46.53], [98.82, 46.68], [98.97, 47.03], [99.5, 47.25], [100.03, 47.03], [100.18, 46.68], [100.5, 46.54], [101.0, 46.75], [101.53, 46.53], [101.68, 46.18], [102.03, 46.03], [102.18, 45.68], [102.53, 45.53], [102.75, 45.0], [102.53, 44.47], [102.0, 44.25], [101.75, 44.35], [101.5, 44.25], [101.25, 44.35], [101.0, 44.25], [100.75, 44.35], [100.68, 44.32], [100.53, 43.97], [100.0, 43.75], [99.75, 43.85], [99.5, 43.75], [99.25, 43.85], [99.0, 43.75], [98.75, 43.85], [98.5, 43.75], [97.97, 43.97], [97.75, 44.5], [97.85, 44.75], [97.82, 44.82], [97.47, 44.97], [97.25, 45.5]]]]}, "2016-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.25, 45.5], [97.47, 46.03], [98.0, 46.25], [98.25, 46.15], [98.32, 46.18], [98.47, 46.53], [98.82, 46.68], [98.97, 47.03], [99.5, 47.25], [100.03, 47.03], [100.18, 46.68], [100.5, 46.54], [101.0, 46.75], [101.53, 46.53], [101.68, 46.18], [102.03, 46.03], [102.18, 45.68], [102.53, 45.53], [102.75, 45.0], [102.53, 44.47], [102.0, 44.25], [101.75, 44.35], [101.5, 44.25], [101.25, 44.35], [101.0, 44.25], [100.75, 44.35], [100.68, 44.32], [100.53, 43.97], [100.0, 43.75], [99.75, 43.85], [99.5, 43.75], [99.25, 43.85], [99.0, 43.75], [98.75, 43.85], [98.5, 43.75], [97.97, 43.97], [97.75, 44.5], [97.85, 44.75], [97.82, 44.82], [97.47, 44.97], [97.25, 45.5]]]]}, "2016-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[97.25, 45.5], [97.47, 46.03], [98.0, 46.25], [98.25, 46.15], [98.32, 46.18], [98.47, 46.53], [98.82, 46.68], [98.97, 47.03], [99.5, 47.25], [100.03, 47.03], [100.18, 46.68], [100.5, 46.54], [101.0, 46.75], [101.53, 46.53], [101.68, 46.18], [102.03, 46.03], [102.18, 45.68], [102.53, 45.53], [102.75, 45.0], [102.53, 44.47], [102.0, 44.25], [101.75, 44.35], [101.5, 44.25], [101.25, 44.35], [101.0, 44.25], [100.75, 44.35], [100.68, 44.32], [100.53, 43.97], [100.0, 43.75], [99.75, 43.85], [99.5, 43.75], [99.25, 43.85], [99.0, 43.75], [98.75, 43.85], [98.5, 43.75], [97.97, 43.97], [97.75, 44.5], [97.85, 44.75], [97.82, 44.82], [97.47, 44.97], [97.25, 45.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.765087970760021}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.697305173330512}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.871495997989655, 15.353541374337567, 15.51404978717926]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.07772970440135, 11.895416958155693, 11.774051466173432]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.034136699972043, -5.628219037712129, -5.429559782307362]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.765087970760021, -6.541834130237476, -6.690307361190548]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.716963739262222, -1.6096314707649144, -1.534260222913825]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0948016725348686, -1.78845473576788, -1.9183754129272348]}}