{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:35.148836", "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-13_to_2016-Jun-16_56.0_33.5"}, "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": 2016060000397}, "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 13 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2016"}, "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": 61484.96037370632}, "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": ["Iran"]}, "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": 33.5}, "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": 56.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "56.0\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": 57.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 35.53], [52.5, 35.75], [53.03, 35.53], [53.18, 35.18], [53.25, 35.15], [53.32, 35.18], [53.47, 35.53], [54.0, 35.75], [54.53, 35.53], [54.68, 35.18], [54.75, 35.15], [55.0, 35.25], [55.53, 35.03], [55.68, 34.68], [55.75, 34.65], [55.82, 34.68], [55.97, 35.03], [56.5, 35.25], [57.03, 35.03], [57.25, 34.5], [57.15, 34.25], [57.25, 34.0], [57.15, 33.75], [57.25, 33.5], [57.03, 32.97], [56.68, 32.82], [56.53, 32.47], [56.0, 32.25], [55.75, 32.35], [55.5, 32.25], [54.97, 32.47], [54.82, 32.82], [54.5, 32.96], [54.0, 32.75], [53.47, 32.97], [53.32, 33.32], [52.97, 33.47], [52.82, 33.82], [52.75, 33.85], [52.5, 33.75], [51.97, 33.97], [51.75, 34.5], [51.85, 34.75], [51.75, 35.0], [51.97, 35.53]]]]}, "2016-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 35.53], [52.5, 35.75], [53.03, 35.53], [53.18, 35.18], [53.25, 35.15], [53.32, 35.18], [53.47, 35.53], [54.0, 35.75], [54.53, 35.53], [54.68, 35.18], [54.75, 35.15], [55.0, 35.25], [55.53, 35.03], [55.68, 34.68], [55.75, 34.65], [55.82, 34.68], [55.97, 35.03], [56.5, 35.25], [57.03, 35.03], [57.25, 34.5], [57.15, 34.25], [57.18, 34.18], [57.53, 34.03], [57.75, 33.5], [57.53, 32.97], [57.0, 32.75], [56.75, 32.85], [56.68, 32.82], [56.53, 32.47], [56.0, 32.25], [55.75, 32.35], [55.5, 32.25], [54.97, 32.47], [54.82, 32.82], [54.5, 32.96], [54.0, 32.75], [53.47, 32.97], [53.32, 33.32], [52.97, 33.47], [52.82, 33.82], [52.75, 33.85], [52.5, 33.75], [51.97, 33.97], [51.75, 34.5], [51.85, 34.75], [51.75, 35.0], [51.97, 35.53]]]]}, "2016-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.97, 35.53], [52.5, 35.75], [53.03, 35.53], [53.18, 35.18], [53.25, 35.15], [53.32, 35.18], [53.47, 35.53], [54.0, 35.75], [54.53, 35.53], [54.68, 35.18], [54.75, 35.15], [55.0, 35.25], [55.53, 35.03], [55.68, 34.68], [55.75, 34.65], [55.82, 34.68], [55.97, 35.03], [56.5, 35.25], [57.03, 35.03], [57.25, 34.5], [57.15, 34.25], [57.18, 34.18], [57.53, 34.03], [57.75, 33.5], [57.53, 32.97], [57.0, 32.75], [56.75, 32.85], [56.68, 32.82], [56.53, 32.47], [56.0, 32.25], [55.75, 32.35], [55.5, 32.25], [54.97, 32.47], [54.82, 32.82], [54.5, 32.96], [54.0, 32.75], [53.47, 32.97], [53.32, 33.32], [52.97, 33.47], [52.82, 33.82], [52.75, 33.85], [52.5, 33.75], [51.97, 33.97], [51.75, 34.5], [51.85, 34.75], [51.75, 35.0], [51.97, 35.53]]]]}, "2016-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[57.0, 34.25], [57.53, 34.03], [57.75, 33.5], [57.53, 32.97], [57.0, 32.75], [56.47, 32.97], [56.25, 33.5], [56.47, 34.03], [57.0, 34.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.695063373138396}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.229689540732748}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.647447860536715, 27.600668539311357, 29.391277187609262, 30.236699409328367]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.385856789148363, 25.060180460551464, 27.649323486624155, 30.236699409328367]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.005444841933502, -5.19303750394766, -3.5416301859147694, -2.7803910115890176]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.885289676555203, -6.695063373138396, -4.246828932819255, -2.7803910115890176]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.601348096478358, -2.0590202596827973, -1.4460774313400255, -1.126944931473335]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.857569882529956, -2.4996333729481, -1.647126603935089, -1.126944931473335]}}