{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:38.175206", "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": "2012-Jun-06_to_2012-Jun-14_67.0_24.5"}, "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": 2012060000337}, "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 06 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 14 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 9}, "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": 83998.03539196726}, "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": ["Pakistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Arabian Sea"]}, "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": 24.5}, "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": 67.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "67.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 63.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 68.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.75, 25.0], [62.97, 25.53], [63.5, 25.75], [63.75, 25.65], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.25, 25.65], [65.5, 25.75], [65.75, 25.65], [65.82, 25.68], [65.97, 26.03], [66.5, 26.25], [67.03, 26.03], [67.18, 25.68], [67.25, 25.65], [67.5, 25.75], [67.75, 25.65], [68.0, 25.75], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.5, 23.75], [67.25, 23.85], [67.0, 23.75], [66.75, 23.85], [66.5, 23.75], [66.25, 23.85], [66.18, 23.82], [66.03, 23.47], [65.5, 23.25], [65.25, 23.35], [65.0, 23.25], [64.75, 23.35], [64.5, 23.25], [63.97, 23.47], [63.75, 24.0], [63.85, 24.25], [63.82, 24.32], [63.75, 24.35], [63.5, 24.25], [62.97, 24.47], [62.75, 25.0]]], [[[65.97, 27.53], [66.32, 27.68], [66.47, 28.03], [67.0, 28.25], [67.53, 28.03], [67.75, 27.5], [67.53, 26.97], [67.18, 26.82], [67.03, 26.47], [66.5, 26.25], [65.97, 26.47], [65.75, 27.0], [65.97, 27.53]]]]}, "2012-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.97, 24.47], [62.75, 25.0], [62.97, 25.53], [63.5, 25.75], [63.75, 25.65], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.25, 25.65], [65.5, 25.75], [65.75, 25.65], [65.82, 25.68], [65.96, 26.0], [65.75, 26.5], [65.85, 26.75], [65.75, 27.0], [65.97, 27.53], [66.32, 27.68], [66.47, 28.03], [67.0, 28.25], [67.53, 28.03], [67.75, 27.5], [67.65, 27.25], [67.75, 27.0], [67.65, 26.75], [67.75, 26.5], [67.65, 26.25], [67.75, 26.0], [67.63, 25.7], [67.75, 25.65], [68.0, 25.75], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.68, 23.82], [67.53, 23.47], [67.0, 23.25], [66.75, 23.35], [66.5, 23.25], [66.25, 23.35], [66.0, 23.25], [65.75, 23.35], [65.5, 23.25], [65.25, 23.35], [65.0, 23.25], [64.75, 23.35], [64.5, 23.25], [63.97, 23.47], [63.75, 24.0], [63.85, 24.25], [63.82, 24.32], [63.75, 24.35], [63.5, 24.25], [62.97, 24.47]]]]}, "2012-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[62.97, 24.47], [62.75, 25.0], [62.97, 25.53], [63.5, 25.75], [63.75, 25.65], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.25, 25.65], [65.5, 25.75], [65.75, 25.65], [65.82, 25.68], [65.96, 26.0], [65.75, 26.5], [65.85, 26.75], [65.75, 27.0], [65.97, 27.53], [66.32, 27.68], [66.47, 28.03], [67.0, 28.25], [67.53, 28.03], [67.75, 27.5], [67.65, 27.25], [67.75, 27.0], [67.65, 26.75], [67.75, 26.5], [67.65, 26.25], [67.75, 26.0], [67.63, 25.7], [67.75, 25.65], [68.0, 25.75], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.68, 23.82], [67.53, 23.47], [67.0, 23.25], [66.75, 23.35], [66.5, 23.25], [66.25, 23.35], [66.0, 23.25], [65.75, 23.35], [65.5, 23.25], [65.25, 23.35], [65.0, 23.25], [64.75, 23.35], [64.5, 23.25], [63.97, 23.47], [63.75, 24.0], [63.85, 24.25], [63.82, 24.32], [63.75, 24.35], [63.5, 24.25], [62.97, 24.47]]]]}, "2012-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.85, 24.75], [63.75, 25.0], [63.97, 25.53], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.25, 25.65], [65.5, 25.75], [65.75, 25.65], [65.82, 25.68], [65.96, 26.0], [65.75, 26.5], [65.97, 27.03], [66.32, 27.18], [66.47, 27.53], [67.0, 27.75], [67.53, 27.53], [67.75, 27.0], [67.65, 26.75], [67.75, 26.5], [67.65, 26.25], [67.75, 26.0], [67.63, 25.7], [67.75, 25.65], [68.0, 25.75], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.68, 23.82], [67.53, 23.47], [67.0, 23.25], [66.75, 23.35], [66.5, 23.25], [66.25, 23.35], [66.0, 23.25], [65.75, 23.35], [65.5, 23.25], [65.25, 23.35], [65.0, 23.25], [64.75, 23.35], [64.5, 23.25], [63.97, 23.47], [63.75, 24.0], [63.85, 24.25], [63.75, 24.5], [63.85, 24.75]]]]}, "2012-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[65.0, 25.25], [65.25, 25.15], [65.32, 25.18], [65.47, 25.53], [66.0, 25.75], [66.25, 25.65], [66.5, 25.75], [66.75, 25.65], [67.0, 25.75], [67.25, 25.65], [67.5, 25.75], [67.75, 25.65], [68.0, 25.75], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.68, 23.82], [67.53, 23.47], [67.0, 23.25], [66.75, 23.35], [66.5, 23.25], [66.25, 23.35], [66.0, 23.25], [65.75, 23.35], [65.5, 23.25], [65.25, 23.35], [65.0, 23.25], [64.47, 23.47], [64.25, 24.0], [64.35, 24.25], [64.25, 24.5], [64.47, 25.03], [65.0, 25.25]]], [[[66.47, 27.03], [67.0, 27.25], [67.53, 27.03], [67.75, 26.5], [67.53, 25.97], [67.0, 25.75], [66.47, 25.97], [66.25, 26.5], [66.47, 27.03]]]]}, "2012-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.47, 24.47], [63.25, 25.0], [63.47, 25.53], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.53, 25.53], [65.68, 25.18], [65.75, 25.15], [66.0, 25.25], [66.25, 25.15], [66.32, 25.18], [66.47, 25.53], [67.0, 25.75], [67.25, 25.65], [67.5, 25.75], [68.03, 25.53], [68.25, 25.0], [68.03, 24.47], [67.68, 24.32], [67.65, 24.25], [67.75, 24.0], [67.53, 23.47], [67.0, 23.25], [66.47, 23.47], [66.32, 23.82], [66.25, 23.85], [66.0, 23.75], [65.75, 23.85], [65.5, 23.75], [64.97, 23.97], [64.82, 24.32], [64.75, 24.35], [64.5, 24.25], [64.25, 24.35], [64.0, 24.25], [63.47, 24.47]]]]}, "2012-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.53, 25.03], [67.75, 24.5], [67.53, 23.97], [67.0, 23.75], [66.47, 23.97], [66.25, 24.5], [66.47, 25.03], [67.0, 25.25], [67.53, 25.03]]], [[[63.25, 25.0], [63.47, 25.53], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.53, 25.53], [65.68, 25.18], [66.03, 25.03], [66.25, 24.5], [66.03, 23.97], [65.5, 23.75], [64.97, 23.97], [64.82, 24.32], [64.75, 24.35], [64.5, 24.25], [64.25, 24.35], [64.0, 24.25], [63.47, 24.47], [63.25, 25.0]]]]}, "2012-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.53, 25.03], [67.75, 24.5], [67.53, 23.97], [67.0, 23.75], [66.47, 23.97], [66.25, 24.5], [66.47, 25.03], [67.0, 25.25], [67.53, 25.03]]], [[[63.25, 25.0], [63.47, 25.53], [64.0, 25.75], [64.25, 25.65], [64.5, 25.75], [64.75, 25.65], [65.0, 25.75], [65.53, 25.53], [65.68, 25.18], [66.03, 25.03], [66.25, 24.5], [66.03, 23.97], [65.5, 23.75], [64.97, 23.97], [64.82, 24.32], [64.75, 24.35], [64.5, 24.25], [64.25, 24.35], [64.0, 24.25], [63.47, 24.47], [63.25, 25.0]]]]}, "2012-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.0, 25.25], [67.53, 25.03], [67.75, 24.5], [67.53, 23.97], [67.0, 23.75], [66.47, 23.97], [66.25, 24.5], [66.47, 25.03], [67.0, 25.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.053655846398158}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6877327954572934}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.042886469349867, 27.703448052944907, 28.080822973039062, 28.321965012478927, 28.407774313675986, 28.270308777805724, 27.871388235573363, 27.935776051642165, 28.275679963596986]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.835753880933794, 25.75869415210866, 26.295978764792267, 26.528591787774246, 27.066623551495184, 27.490507240055422, 27.625326493917953, 27.679785502867276, 28.275679963596986]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.577068698119134, -2.2359153569100574, -1.8827054462894126, -1.6043656861376077, -1.4194624667106603, -1.1289209297393654, -1.0592379684231787, -1.0055186711613033, -0.8081545105228543]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5159082759379316, -6.053655846398158, -4.182136236690155, -2.642015355035312, -2.2112799478769603, -1.7139147720889696, -1.1718278625789367, -1.1343928658456548, -0.8081545105228543]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8282108852920695, -2.1875568586357677, -1.96331533080728, -1.8515285884717896, -1.7756833658976459, -1.4693891435181201, -1.5458991754677955, -1.558379461222796, -1.2714902230553489]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4881443509608627, -3.241154736544928, -3.4896331261918396, -3.2237834720122263, -2.5495364457362197, -2.104882438723108, -1.6306140434949612, -1.738436566287942, -1.2714902230553489]}}