{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:36.076989", "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-Jun-20_to_2016-Jun-24_78.5_42.0"}, "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": 2016060000651}, "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 20 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 488972.552736276}, "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", "Kazakhstan", "Kyrgyzstan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "W.C.Asia", "W.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": 42.0}, "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": 78.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "78.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 68.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 81.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.0, 45.75], [78.53, 45.53], [78.75, 45.0], [78.53, 44.47], [78.0, 44.25], [77.47, 44.47], [77.25, 45.0], [77.47, 45.53], [78.0, 45.75]]]]}, "2016-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[68.38, 43.7], [68.25, 44.0], [68.47, 44.53], [69.0, 44.75], [69.53, 44.53], [69.68, 44.18], [69.8, 44.13], [69.97, 44.53], [70.5, 44.75], [69.97, 44.97], [69.75, 45.5], [69.97, 46.03], [70.5, 46.25], [70.75, 46.15], [70.82, 46.18], [70.97, 46.53], [71.5, 46.75], [71.75, 46.65], [72.0, 46.75], [72.53, 46.53], [72.68, 46.18], [73.03, 46.03], [73.18, 45.68], [73.25, 45.65], [73.5, 45.75], [74.03, 45.53], [74.18, 45.18], [74.25, 45.15], [74.5, 45.25], [74.75, 45.15], [75.0, 45.25], [75.53, 45.03], [75.68, 44.68], [75.75, 44.65], [76.0, 44.75], [76.25, 44.65], [76.5, 44.75], [76.75, 44.65], [77.0, 44.75], [77.43, 44.57], [77.25, 45.0], [77.47, 45.53], [78.0, 45.75], [78.5, 45.54], [79.0, 45.75], [79.25, 45.65], [79.5, 45.75], [80.03, 45.53], [80.25, 45.0], [80.04, 44.5], [80.25, 44.0], [80.03, 43.47], [79.63, 43.3], [79.75, 43.0], [79.53, 42.47], [79.13, 42.3], [79.25, 42.0], [79.03, 41.47], [78.5, 41.25], [78.25, 41.35], [78.0, 41.25], [77.47, 41.47], [77.25, 42.0], [77.38, 42.3], [77.2, 42.38], [77.03, 41.97], [76.5, 41.75], [76.25, 41.85], [76.0, 41.75], [75.75, 41.85], [75.5, 41.75], [75.25, 41.85], [75.18, 41.82], [75.03, 41.47], [74.5, 41.25], [74.25, 41.35], [74.0, 41.25], [73.75, 41.35], [73.5, 41.25], [73.25, 41.35], [73.0, 41.25], [72.75, 41.35], [72.5, 41.25], [72.25, 41.35], [72.0, 41.25], [71.5, 41.46], [71.0, 41.25], [70.75, 41.35], [70.5, 41.25], [70.25, 41.35], [70.0, 41.25], [69.75, 41.35], [69.68, 41.32], [69.53, 40.97], [69.0, 40.75], [68.47, 40.97], [68.25, 41.5], [68.35, 41.75], [68.32, 41.82], [67.97, 41.97], [67.75, 42.5], [67.85, 42.75], [67.75, 43.0], [67.97, 43.53], [68.38, 43.7]], [[70.75, 44.65], [70.82, 44.68], [70.88, 44.8], [70.75, 44.85], [70.5, 44.75], [70.75, 44.65]]], [[[72.75, 47.5], [72.97, 48.03], [73.5, 48.25], [74.0, 48.04], [74.5, 48.25], [74.75, 48.15], [75.0, 48.25], [75.53, 48.03], [75.68, 47.68], [75.75, 47.65], [76.0, 47.75], [76.25, 47.65], [76.5, 47.75], [76.75, 47.65], [77.0, 47.75], [77.25, 47.65], [77.5, 47.75], [78.03, 47.53], [78.25, 47.0], [78.03, 46.47], [77.5, 46.25], [77.25, 46.35], [77.0, 46.25], [76.75, 46.35], [76.5, 46.25], [76.25, 46.35], [76.0, 46.25], [75.75, 46.35], [75.5, 46.25], [75.0, 46.46], [74.5, 46.25], [73.97, 46.47], [73.8, 46.88], [73.5, 46.75], [72.97, 46.97], [72.75, 47.5]]]]}, "2016-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.97, 43.53], [68.38, 43.7], [68.25, 44.0], [68.47, 44.53], [69.0, 44.75], [69.53, 44.53], [69.68, 44.18], [69.8, 44.13], [69.97, 44.53], [70.5, 44.75], [69.97, 44.97], [69.75, 45.5], [69.97, 46.03], [70.5, 46.25], [70.75, 46.15], [70.82, 46.18], [70.97, 46.53], [71.5, 46.75], [71.75, 46.65], [72.0, 46.75], [72.3, 46.63], [72.35, 46.75], [72.25, 47.0], [72.47, 47.53], [72.82, 47.68], [72.85, 47.75], [72.75, 48.0], [72.97, 48.53], [73.5, 48.75], [73.75, 48.65], [74.0, 48.75], [74.53, 48.53], [74.68, 48.18], [74.75, 48.15], [75.0, 48.25], [75.25, 48.15], [75.5, 48.25], [75.75, 48.15], [76.0, 48.25], [76.25, 48.15], [76.5, 48.25], [76.75, 48.15], [77.0, 48.25], [77.25, 48.15], [77.5, 48.25], [78.03, 48.03], [78.18, 47.68], [78.53, 47.53], [78.7, 47.13], [79.0, 47.25], [79.53, 47.03], [79.75, 46.5], [79.65, 46.25], [79.68, 46.18], [80.03, 46.03], [80.25, 45.5], [80.15, 45.25], [80.18, 45.18], [80.53, 45.03], [80.75, 44.5], [80.63, 44.2], [80.75, 44.15], [81.0, 44.25], [81.53, 44.03], [81.75, 43.5], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.68, 42.82], [80.53, 42.47], [80.0, 42.25], [79.75, 42.35], [79.63, 42.3], [79.75, 42.0], [79.65, 41.75], [79.75, 41.5], [79.53, 40.97], [79.0, 40.75], [78.75, 40.85], [78.68, 40.82], [78.53, 40.47], [78.0, 40.25], [77.75, 40.35], [77.68, 40.32], [77.53, 39.97], [77.0, 39.75], [76.5, 39.96], [76.0, 39.75], [75.75, 39.85], [75.5, 39.75], [75.2, 39.88], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.47, 41.03], [73.82, 41.18], [73.88, 41.3], [73.75, 41.35], [73.5, 41.25], [73.25, 41.35], [73.0, 41.25], [72.75, 41.35], [72.5, 41.25], [72.25, 41.35], [72.0, 41.25], [71.5, 41.46], [71.0, 41.25], [70.75, 41.35], [70.5, 41.25], [70.25, 41.35], [70.0, 41.25], [69.75, 41.35], [69.68, 41.32], [69.53, 40.97], [69.0, 40.75], [68.47, 40.97], [68.25, 41.5], [68.35, 41.75], [68.32, 41.82], [67.97, 41.97], [67.75, 42.5], [67.85, 42.75], [67.75, 43.0], [67.97, 43.53]], [[70.75, 44.65], [70.82, 44.68], [70.88, 44.8], [70.75, 44.85], [70.5, 44.75], [70.75, 44.65]], [[73.82, 45.82], [73.75, 45.85], [73.5, 45.75], [73.75, 45.65], [73.82, 45.68], [73.85, 45.75], [73.82, 45.82]], [[73.25, 45.85], [73.13, 45.8], [73.18, 45.68], [73.25, 45.65], [73.5, 45.75], [73.25, 45.85]]]]}, "2016-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.97, 43.53], [68.38, 43.7], [68.25, 44.0], [68.47, 44.53], [69.0, 44.75], [69.53, 44.53], [69.68, 44.18], [69.8, 44.13], [69.97, 44.53], [70.5, 44.75], [69.97, 44.97], [69.75, 45.5], [69.97, 46.03], [70.5, 46.25], [70.75, 46.15], [70.82, 46.18], [70.97, 46.53], [71.5, 46.75], [71.75, 46.65], [72.0, 46.75], [72.3, 46.63], [72.35, 46.75], [72.25, 47.0], [72.47, 47.53], [72.82, 47.68], [72.85, 47.75], [72.75, 48.0], [72.97, 48.53], [73.5, 48.75], [73.75, 48.65], [74.0, 48.75], [74.53, 48.53], [74.68, 48.18], [74.75, 48.15], [75.0, 48.25], [75.25, 48.15], [75.5, 48.25], [75.75, 48.15], [76.0, 48.25], [76.25, 48.15], [76.5, 48.25], [76.75, 48.15], [77.0, 48.25], [77.25, 48.15], [77.5, 48.25], [78.03, 48.03], [78.18, 47.68], [78.53, 47.53], [78.7, 47.13], [79.0, 47.25], [79.53, 47.03], [79.75, 46.5], [79.65, 46.25], [79.68, 46.18], [80.03, 46.03], [80.25, 45.5], [80.15, 45.25], [80.18, 45.18], [80.53, 45.03], [80.75, 44.5], [80.63, 44.2], [80.75, 44.15], [81.0, 44.25], [81.53, 44.03], [81.75, 43.5], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.68, 42.82], [80.53, 42.47], [80.0, 42.25], [79.75, 42.35], [79.63, 42.3], [79.75, 42.0], [79.65, 41.75], [79.75, 41.5], [79.53, 40.97], [79.0, 40.75], [78.75, 40.85], [78.68, 40.82], [78.53, 40.47], [78.0, 40.25], [77.75, 40.35], [77.68, 40.32], [77.53, 39.97], [77.0, 39.75], [76.5, 39.96], [76.0, 39.75], [75.75, 39.85], [75.5, 39.75], [75.2, 39.88], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.47, 41.03], [73.82, 41.18], [73.88, 41.3], [73.75, 41.35], [73.5, 41.25], [73.25, 41.35], [73.0, 41.25], [72.75, 41.35], [72.5, 41.25], [72.25, 41.35], [72.0, 41.25], [71.5, 41.46], [71.0, 41.25], [70.75, 41.35], [70.5, 41.25], [70.25, 41.35], [70.0, 41.25], [69.75, 41.35], [69.68, 41.32], [69.53, 40.97], [69.0, 40.75], [68.47, 40.97], [68.25, 41.5], [68.35, 41.75], [68.32, 41.82], [67.97, 41.97], [67.75, 42.5], [67.85, 42.75], [67.75, 43.0], [67.97, 43.53]], [[70.75, 44.65], [70.82, 44.68], [70.88, 44.8], [70.75, 44.85], [70.5, 44.75], [70.75, 44.65]], [[73.82, 45.82], [73.75, 45.85], [73.5, 45.75], [73.75, 45.65], [73.82, 45.68], [73.85, 45.75], [73.82, 45.82]], [[73.25, 45.85], [73.13, 45.8], [73.18, 45.68], [73.25, 45.65], [73.5, 45.75], [73.25, 45.85]]]]}, "2016-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.47, 43.03], [73.0, 43.25], [73.25, 43.15], [73.5, 43.25], [74.0, 43.04], [74.5, 43.25], [74.75, 43.15], [74.88, 43.2], [74.75, 43.5], [74.85, 43.75], [74.82, 43.82], [74.47, 43.97], [74.32, 44.32], [74.25, 44.35], [74.0, 44.25], [73.47, 44.47], [73.25, 45.0], [73.47, 45.53], [73.82, 45.68], [73.85, 45.75], [73.82, 45.82], [73.75, 45.85], [73.5, 45.75], [73.25, 45.85], [73.0, 45.75], [72.47, 45.97], [72.25, 46.5], [72.35, 46.75], [72.25, 47.0], [72.47, 47.53], [72.82, 47.68], [72.85, 47.75], [72.75, 48.0], [72.97, 48.53], [73.5, 48.75], [73.75, 48.65], [74.0, 48.75], [74.53, 48.53], [74.68, 48.18], [74.75, 48.15], [75.0, 48.25], [75.25, 48.15], [75.5, 48.25], [75.75, 48.15], [76.0, 48.25], [76.25, 48.15], [76.5, 48.25], [76.75, 48.15], [77.0, 48.25], [77.25, 48.15], [77.5, 48.25], [78.03, 48.03], [78.18, 47.68], [78.53, 47.53], [78.7, 47.13], [79.0, 47.25], [79.53, 47.03], [79.75, 46.5], [79.65, 46.25], [79.68, 46.18], [80.03, 46.03], [80.25, 45.5], [80.15, 45.25], [80.18, 45.18], [80.53, 45.03], [80.75, 44.5], [80.63, 44.2], [80.75, 44.15], [81.0, 44.25], [81.53, 44.03], [81.75, 43.5], [81.53, 42.97], [81.0, 42.75], [80.75, 42.85], [80.68, 42.82], [80.53, 42.47], [80.0, 42.25], [79.75, 42.35], [79.63, 42.3], [79.75, 42.0], [79.65, 41.75], [79.75, 41.5], [79.53, 40.97], [79.0, 40.75], [78.75, 40.85], [78.68, 40.82], [78.53, 40.47], [78.0, 40.25], [77.75, 40.35], [77.68, 40.32], [77.53, 39.97], [77.0, 39.75], [76.5, 39.96], [76.0, 39.75], [75.75, 39.85], [75.5, 39.75], [75.2, 39.88], [75.03, 39.47], [74.5, 39.25], [74.25, 39.35], [74.0, 39.25], [73.47, 39.47], [73.25, 40.0], [73.35, 40.25], [73.25, 40.5], [73.47, 41.03], [73.82, 41.18], [73.88, 41.3], [73.75, 41.35], [73.5, 41.25], [73.25, 41.35], [73.0, 41.25], [72.47, 41.47], [72.25, 42.0], [72.35, 42.25], [72.25, 42.5], [72.47, 43.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.322111852044884}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.3268795764107955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.181123912150554, 17.512311555698602, 14.37408106203327, 15.225258800622157, 13.955824626245885]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.181123912150554, -2.2901198525991617, -2.064435508099052, -3.5088321424562423, -3.9135829616382694]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.707650664570906, -4.588885631477051, -6.145511005986103, -5.33019924311687, -4.688101599793769]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.707650664570906, -6.7068011845206, -9.322111852044884, -7.686529816236543, -6.647051450417848]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3583113831147848, -1.6293277478980226, -2.2877317866604105, -1.9802389349091627, -1.7877512984563688]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3583113831147848, -2.119250265421985, -3.3316376532963345, -3.1773602368998457, -2.907896973680139]}}