{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:30.941964", "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": "2013-Jun-03_to_2013-Jun-06_49.0_19.0"}, "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": 2013060000238}, "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": "June 03 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2013"}, "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": 73177.72512329559}, "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": ["Saudi Arabia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "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": 19.0}, "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": 49.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 50.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.5, 20.25], [47.03, 20.03], [47.25, 19.5], [47.03, 18.97], [46.5, 18.75], [45.97, 18.97], [45.75, 19.5], [45.97, 20.03], [46.5, 20.25]]]]}, "2013-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 19.53], [45.82, 19.68], [45.97, 20.03], [46.5, 20.25], [46.75, 20.15], [47.0, 20.25], [47.53, 20.03], [47.68, 19.68], [47.75, 19.65], [47.82, 19.68], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.68, 19.68], [50.03, 19.53], [50.18, 19.18], [50.25, 19.15], [50.5, 19.25], [51.03, 19.03], [51.25, 18.5], [51.03, 17.97], [50.68, 17.82], [50.53, 17.47], [50.0, 17.25], [49.75, 17.35], [49.5, 17.25], [49.25, 17.35], [49.0, 17.25], [48.75, 17.35], [48.5, 17.25], [47.97, 17.47], [47.82, 17.82], [47.75, 17.85], [47.5, 17.75], [47.0, 17.96], [46.5, 17.75], [46.25, 17.85], [46.0, 17.75], [45.47, 17.97], [45.25, 18.5], [45.35, 18.75], [45.25, 19.0], [45.47, 19.53]]]]}, "2013-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 19.53], [45.82, 19.68], [45.97, 20.03], [46.5, 20.25], [46.75, 20.15], [47.0, 20.25], [47.53, 20.03], [47.68, 19.68], [47.75, 19.65], [47.82, 19.68], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.68, 19.68], [50.03, 19.53], [50.18, 19.18], [50.25, 19.15], [50.5, 19.25], [51.03, 19.03], [51.25, 18.5], [51.03, 17.97], [50.68, 17.82], [50.53, 17.47], [50.0, 17.25], [49.75, 17.35], [49.5, 17.25], [49.25, 17.35], [49.0, 17.25], [48.75, 17.35], [48.5, 17.25], [47.97, 17.47], [47.82, 17.82], [47.75, 17.85], [47.5, 17.75], [47.0, 17.96], [46.5, 17.75], [46.25, 17.85], [46.0, 17.75], [45.47, 17.97], [45.25, 18.5], [45.35, 18.75], [45.25, 19.0], [45.47, 19.53]]]]}, "2013-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.47, 19.53], [45.82, 19.68], [45.97, 20.03], [46.5, 20.25], [46.75, 20.15], [47.0, 20.25], [47.53, 20.03], [47.68, 19.68], [47.75, 19.65], [47.82, 19.68], [47.97, 20.03], [48.5, 20.25], [48.75, 20.15], [49.0, 20.25], [49.53, 20.03], [49.68, 19.68], [50.03, 19.53], [50.18, 19.18], [50.25, 19.15], [50.5, 19.25], [51.03, 19.03], [51.25, 18.5], [51.03, 17.97], [50.68, 17.82], [50.53, 17.47], [50.0, 17.25], [49.75, 17.35], [49.5, 17.25], [49.25, 17.35], [49.0, 17.25], [48.75, 17.35], [48.5, 17.25], [47.97, 17.47], [47.82, 17.82], [47.75, 17.85], [47.5, 17.75], [47.0, 17.96], [46.5, 17.75], [46.25, 17.85], [46.0, 17.75], [45.47, 17.97], [45.25, 18.5], [45.35, 18.75], [45.25, 19.0], [45.47, 19.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.849593024116018}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.472863713124688}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.874030515421566, 32.42815461537941, 32.799030000891946, 32.28933191393867]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.874030515421566, 31.016002614623574, 30.79567431677583, 31.643493797182714]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8047045481839064, -2.5299900056629463, -2.1860324749053732, -2.729295025403376]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8047045481839064, -3.083009667991405, -2.562300404761231, -3.849593024116018]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3417744315854032, -1.8148358146019619, -1.5883705383524127, -1.9745944367771375]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3417744315854032, -2.0917238316848428, -1.9901662861145026, -2.658905544352697]}}