{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:49.106282", "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-Jul-24_to_2016-Jul-31_47.5_40.0"}, "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": 2016070000839}, "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": "July 24 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 31 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 68715.6993537815}, "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": ["Armenia", "Azerbaijan", "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": 40.0}, "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": 47.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 39.47], [46.75, 40.0], [46.97, 40.53], [47.5, 40.75], [47.75, 40.65], [47.82, 40.68], [47.97, 41.03], [48.5, 41.25], [49.03, 41.03], [49.25, 40.5], [49.03, 39.97], [48.68, 39.82], [48.53, 39.47], [48.0, 39.25], [47.75, 39.35], [47.5, 39.25], [46.97, 39.47]]]]}, "2016-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 39.47], [46.75, 40.0], [46.97, 40.53], [47.5, 40.75], [47.75, 40.65], [47.82, 40.68], [47.97, 41.03], [48.5, 41.25], [48.75, 41.15], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.53, 39.47], [49.0, 39.25], [48.75, 39.35], [48.5, 39.25], [48.25, 39.35], [48.0, 39.25], [47.75, 39.35], [47.5, 39.25], [46.97, 39.47]]]]}, "2016-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.25, 40.5], [46.47, 41.03], [47.0, 41.25], [47.53, 41.03], [47.68, 40.68], [47.75, 40.65], [47.82, 40.68], [47.97, 41.03], [48.5, 41.25], [48.75, 41.15], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.53, 39.47], [49.0, 39.25], [48.75, 39.35], [48.5, 39.25], [48.25, 39.35], [48.0, 39.25], [47.75, 39.35], [47.5, 39.25], [46.97, 39.47], [46.82, 39.82], [46.47, 39.97], [46.25, 40.5]]]]}, "2016-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.35, 40.25], [46.25, 40.5], [46.47, 41.03], [47.0, 41.25], [47.53, 41.03], [47.68, 40.68], [47.75, 40.65], [48.0, 40.75], [48.25, 40.65], [48.32, 40.68], [48.47, 41.03], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.53, 39.47], [49.0, 39.25], [48.75, 39.35], [48.68, 39.32], [48.53, 38.97], [48.18, 38.82], [48.03, 38.47], [47.5, 38.25], [46.97, 38.47], [46.82, 38.82], [46.47, 38.97], [46.25, 39.5], [46.35, 39.75], [46.25, 40.0], [46.35, 40.25]]]]}, "2016-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.97, 40.47], [44.75, 41.0], [44.97, 41.53], [45.5, 41.75], [45.75, 41.65], [46.0, 41.75], [46.25, 41.65], [46.5, 41.75], [46.75, 41.65], [47.0, 41.75], [47.25, 41.65], [47.5, 41.75], [48.03, 41.53], [48.18, 41.18], [48.25, 41.15], [48.5, 41.25], [48.75, 41.15], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.65, 39.75], [49.75, 39.5], [49.54, 39.0], [49.75, 38.5], [49.53, 37.97], [49.0, 37.75], [48.47, 37.97], [48.32, 38.32], [48.0, 38.46], [47.5, 38.25], [47.25, 38.35], [47.0, 38.25], [46.75, 38.35], [46.5, 38.25], [46.25, 38.35], [46.0, 38.25], [45.47, 38.47], [45.25, 39.0], [45.47, 39.53], [45.82, 39.68], [45.85, 39.75], [45.75, 40.0], [45.85, 40.25], [45.82, 40.32], [45.75, 40.35], [45.5, 40.25], [44.97, 40.47]]]]}, "2016-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.97, 40.47], [44.75, 41.0], [44.97, 41.53], [45.5, 41.75], [45.75, 41.65], [46.0, 41.75], [46.25, 41.65], [46.5, 41.75], [46.75, 41.65], [47.0, 41.75], [47.25, 41.65], [47.5, 41.75], [48.03, 41.53], [48.18, 41.18], [48.25, 41.15], [48.5, 41.25], [48.75, 41.15], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.65, 39.75], [49.75, 39.5], [49.54, 39.0], [49.75, 38.5], [49.53, 37.97], [49.0, 37.75], [48.47, 37.97], [48.32, 38.32], [48.0, 38.46], [47.5, 38.25], [47.25, 38.35], [47.0, 38.25], [46.75, 38.35], [46.5, 38.25], [46.25, 38.35], [46.0, 38.25], [45.47, 38.47], [45.25, 39.0], [45.47, 39.53], [45.82, 39.68], [45.85, 39.75], [45.75, 40.0], [45.85, 40.25], [45.82, 40.32], [45.75, 40.35], [45.5, 40.25], [44.97, 40.47]]]]}, "2016-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.97, 40.47], [44.75, 41.0], [44.97, 41.53], [45.5, 41.75], [45.75, 41.65], [46.0, 41.75], [46.25, 41.65], [46.5, 41.75], [46.75, 41.65], [47.0, 41.75], [47.25, 41.65], [47.5, 41.75], [48.03, 41.53], [48.18, 41.18], [48.25, 41.15], [48.5, 41.25], [48.75, 41.15], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.65, 40.25], [49.75, 40.0], [49.65, 39.75], [49.75, 39.5], [49.54, 39.0], [49.75, 38.5], [49.53, 37.97], [49.0, 37.75], [48.47, 37.97], [48.32, 38.32], [47.97, 38.47], [47.75, 39.0], [47.53, 38.47], [47.0, 38.25], [46.75, 38.35], [46.5, 38.25], [46.25, 38.35], [46.0, 38.25], [45.47, 38.47], [45.25, 39.0], [45.47, 39.53], [45.82, 39.68], [45.85, 39.75], [45.75, 40.0], [45.85, 40.25], [45.82, 40.32], [45.75, 40.35], [45.5, 40.25], [44.97, 40.47]], [[47.85, 39.25], [47.82, 39.32], [47.75, 39.35], [47.68, 39.32], [47.65, 39.25], [47.75, 39.0], [47.85, 39.25]]]]}, "2016-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.35, 40.25], [46.25, 40.5], [46.47, 41.03], [47.0, 41.25], [47.25, 41.15], [47.5, 41.25], [47.75, 41.15], [48.0, 41.25], [48.5, 41.04], [49.0, 41.25], [49.53, 41.03], [49.75, 40.5], [49.53, 39.97], [49.0, 39.75], [48.7, 39.88], [48.53, 39.47], [48.0, 39.25], [47.75, 39.35], [47.68, 39.32], [47.53, 38.97], [47.0, 38.75], [46.47, 38.97], [46.25, 39.5], [46.35, 39.75], [46.25, 40.0], [46.35, 40.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.212015581817411}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.917279947062571}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.044072296095862, 24.796577254851286, 25.58301860088079, 24.685051268473785, 21.880354566692006, 21.461677029152668, 22.915663829807613, 24.68561239457864]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.843118731179914, 20.965872676861522, 21.782710032212663, 20.701469283614585, 15.215460080560433, 14.867001735233316, 15.816848190690905, 21.37475879865883]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.2661693003074674, -3.8188645013781772, -3.144559774961554, -3.274634933349236, -4.3296769806337805, -4.776364075052792, -3.256722441285092, -3.332717751419885]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.658917495503374, -4.301762371064456, -3.614066500751221, -3.8030341059533157, -5.71295544025935, -6.212015581817411, -4.61155018847262, -3.957525700143492]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7810407592955702, -2.041888859564845, -1.5249985773592527, -1.5335377421168372, -1.9531145142403323, -2.1263637472181176, -1.4227745106335346, -1.4251656995173287]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9445101190062555, -2.1637383352731825, -1.6341346643104575, -1.7379925737109345, -2.353867127668175, -2.715407332880459, -1.8010774275984456, -1.7205141494571259]}}