{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:28.586159", "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": "2010-Apr-28_to_2010-May-01_53.5_41.5"}, "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": 2010040000815}, "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": "April 28 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 2010"}, "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": 293840.3752421441}, "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": ["Kazakhstan", "Turkmenistan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.C.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": 41.5}, "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": 53.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 52.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 60.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 44.03], [52.5, 44.25], [52.75, 44.15], [53.0, 44.25], [53.25, 44.15], [53.5, 44.25], [53.75, 44.15], [54.0, 44.25], [54.25, 44.15], [54.5, 44.25], [54.75, 44.15], [54.82, 44.18], [54.85, 44.25], [54.75, 44.5], [54.97, 45.03], [55.5, 45.25], [55.75, 45.15], [56.0, 45.25], [56.25, 45.15], [56.5, 45.25], [56.75, 45.15], [57.0, 45.25], [57.53, 45.03], [57.75, 44.5], [57.65, 44.25], [57.68, 44.18], [57.75, 44.15], [58.0, 44.25], [58.25, 44.15], [58.5, 44.25], [58.75, 44.15], [59.0, 44.25], [59.53, 44.03], [59.75, 43.5], [59.53, 42.97], [59.0, 42.75], [58.75, 42.85], [58.68, 42.82], [58.53, 42.47], [58.18, 42.32], [58.03, 41.97], [57.63, 41.8], [57.75, 41.5], [57.53, 40.97], [57.0, 40.75], [56.75, 40.85], [56.68, 40.82], [56.53, 40.47], [56.0, 40.25], [55.75, 40.35], [55.68, 40.32], [55.53, 39.97], [55.18, 39.82], [55.03, 39.47], [54.5, 39.25], [54.25, 39.35], [54.0, 39.25], [53.75, 39.35], [53.5, 39.25], [53.25, 39.35], [53.0, 39.25], [52.47, 39.47], [52.25, 40.0], [52.35, 40.25], [52.25, 40.5], [52.46, 41.0], [52.32, 41.32], [51.97, 41.47], [51.75, 42.0], [51.96, 42.5], [51.75, 43.0], [51.85, 43.25], [51.75, 43.5], [51.97, 44.03]]]]}, "2010-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 44.03], [52.5, 44.25], [52.75, 44.15], [53.0, 44.25], [53.25, 44.15], [53.5, 44.25], [53.75, 44.15], [54.0, 44.25], [54.25, 44.15], [54.5, 44.25], [54.75, 44.15], [54.82, 44.18], [54.85, 44.25], [54.75, 44.5], [54.97, 45.03], [55.5, 45.25], [55.75, 45.15], [56.0, 45.25], [56.25, 45.15], [56.5, 45.25], [56.75, 45.15], [57.0, 45.25], [57.53, 45.03], [57.75, 44.5], [57.65, 44.25], [57.68, 44.18], [57.75, 44.15], [58.0, 44.25], [58.25, 44.15], [58.5, 44.25], [58.75, 44.15], [59.0, 44.25], [59.53, 44.03], [59.75, 43.5], [59.53, 42.97], [59.0, 42.75], [58.75, 42.85], [58.68, 42.82], [58.63, 42.7], [59.03, 42.53], [59.18, 42.18], [59.25, 42.15], [59.5, 42.25], [59.75, 42.15], [60.0, 42.25], [60.25, 42.15], [60.5, 42.25], [61.03, 42.03], [61.25, 41.5], [61.03, 40.97], [60.68, 40.82], [60.65, 40.75], [60.75, 40.5], [60.53, 39.97], [60.18, 39.82], [60.03, 39.47], [59.68, 39.32], [59.53, 38.97], [59.0, 38.75], [58.75, 38.85], [58.5, 38.75], [58.25, 38.85], [58.18, 38.82], [58.03, 38.47], [57.5, 38.25], [57.25, 38.35], [57.0, 38.25], [56.75, 38.35], [56.5, 38.25], [56.25, 38.35], [56.0, 38.25], [55.75, 38.35], [55.5, 38.25], [55.25, 38.35], [55.0, 38.25], [54.75, 38.35], [54.5, 38.25], [53.97, 38.47], [53.82, 38.82], [53.47, 38.97], [53.32, 39.32], [53.25, 39.35], [53.0, 39.25], [52.47, 39.47], [52.25, 40.0], [52.35, 40.25], [52.25, 40.5], [52.46, 41.0], [52.32, 41.32], [51.97, 41.47], [51.75, 42.0], [51.96, 42.5], [51.75, 43.0], [51.85, 43.25], [51.75, 43.5], [51.97, 44.03]]]]}, "2010-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 44.03], [52.5, 44.25], [52.75, 44.15], [53.0, 44.25], [53.25, 44.15], [53.5, 44.25], [53.75, 44.15], [54.0, 44.25], [54.25, 44.15], [54.5, 44.25], [54.75, 44.15], [54.82, 44.18], [54.85, 44.25], [54.75, 44.5], [54.97, 45.03], [55.5, 45.25], [55.75, 45.15], [56.0, 45.25], [56.25, 45.15], [56.5, 45.25], [56.75, 45.15], [57.0, 45.25], [57.53, 45.03], [57.75, 44.5], [57.65, 44.25], [57.68, 44.18], [57.75, 44.15], [58.0, 44.25], [58.25, 44.15], [58.5, 44.25], [58.75, 44.15], [59.0, 44.25], [59.53, 44.03], [59.75, 43.5], [59.53, 42.97], [59.0, 42.75], [58.75, 42.85], [58.68, 42.82], [58.63, 42.7], [59.03, 42.53], [59.18, 42.18], [59.25, 42.15], [59.5, 42.25], [59.75, 42.15], [60.0, 42.25], [60.25, 42.15], [60.5, 42.25], [61.03, 42.03], [61.25, 41.5], [61.03, 40.97], [60.68, 40.82], [60.65, 40.75], [60.75, 40.5], [60.53, 39.97], [60.18, 39.82], [60.03, 39.47], [59.68, 39.32], [59.53, 38.97], [59.0, 38.75], [58.75, 38.85], [58.5, 38.75], [58.25, 38.85], [58.18, 38.82], [58.03, 38.47], [57.5, 38.25], [57.25, 38.35], [57.0, 38.25], [56.75, 38.35], [56.5, 38.25], [56.25, 38.35], [56.0, 38.25], [55.75, 38.35], [55.5, 38.25], [55.25, 38.35], [55.0, 38.25], [54.75, 38.35], [54.5, 38.25], [53.97, 38.47], [53.82, 38.82], [53.47, 38.97], [53.32, 39.32], [53.25, 39.35], [53.0, 39.25], [52.47, 39.47], [52.25, 40.0], [52.35, 40.25], [52.25, 40.5], [52.46, 41.0], [52.32, 41.32], [51.97, 41.47], [51.75, 42.0], [51.96, 42.5], [51.75, 43.0], [51.85, 43.25], [51.75, 43.5], [51.97, 44.03]]]]}, "2010-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[54.0, 40.75], [54.25, 40.65], [54.32, 40.68], [54.35, 40.75], [54.25, 41.0], [54.47, 41.53], [54.82, 41.68], [54.97, 42.03], [55.5, 42.25], [55.75, 42.15], [56.0, 42.25], [56.25, 42.15], [56.5, 42.25], [56.75, 42.15], [57.0, 42.25], [57.25, 42.15], [57.5, 42.25], [57.8, 42.13], [57.97, 42.53], [58.5, 42.75], [59.03, 42.53], [59.18, 42.18], [59.25, 42.15], [59.5, 42.25], [59.75, 42.15], [60.0, 42.25], [60.25, 42.15], [60.5, 42.25], [61.03, 42.03], [61.25, 41.5], [61.03, 40.97], [60.68, 40.82], [60.65, 40.75], [60.75, 40.5], [60.53, 39.97], [60.18, 39.82], [60.03, 39.47], [59.68, 39.32], [59.53, 38.97], [59.0, 38.75], [58.75, 38.85], [58.5, 38.75], [58.25, 38.85], [58.18, 38.82], [58.03, 38.47], [57.5, 38.25], [57.25, 38.35], [57.0, 38.25], [56.75, 38.35], [56.5, 38.25], [56.25, 38.35], [56.0, 38.25], [55.75, 38.35], [55.5, 38.25], [55.25, 38.35], [55.0, 38.25], [54.75, 38.35], [54.5, 38.25], [53.97, 38.47], [53.82, 38.82], [53.47, 38.97], [53.25, 39.5], [53.35, 39.75], [53.25, 40.0], [53.47, 40.53], [54.0, 40.75]]], [[[54.03, 42.53], [54.25, 42.0], [54.15, 41.75], [54.25, 41.5], [54.03, 40.97], [53.5, 40.75], [53.25, 40.85], [53.0, 40.75], [52.47, 40.97], [52.25, 41.5], [52.47, 42.03], [52.82, 42.18], [52.97, 42.53], [53.5, 42.75], [54.03, 42.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.910575540426748}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.364553192368444}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.628602773456123, 10.846121254941409, 10.050376725919875, 12.88448181070504]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.687176088655065, 8.772813107924549, 6.816295219947165, 10.667130847572878]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.876149757529554, -7.106250992005913, -8.158917928540728, -6.880642770099325]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.037757479791594, -9.332569884212944, -9.910575540426748, -8.055086247720396]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5790424750705372, -1.6012366971771546, -1.8525107835715673, -1.5383584364604677]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9256446265676328, -2.0384228153565447, -2.166296341780688, -1.724050448483192]}}