{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:39.027275", "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": "2014-Jun-26_to_2014-Jul-04_44.0_12.5"}, "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": 2014060001018}, "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 26 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 2014"}, "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": 78621.82124497835}, "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": ["Somalia", "Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "N.Eastern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": ["Gulf of Aden"]}, "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": 12.5}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.5, 13.75], [45.75, 13.65], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [47.03, 13.53], [47.25, 13.0], [47.03, 12.47], [46.5, 12.25], [46.25, 12.35], [46.0, 12.25], [45.75, 12.35], [45.68, 12.32], [45.53, 11.97], [45.0, 11.75], [44.47, 11.97], [44.25, 12.5], [44.47, 13.03], [44.82, 13.18], [44.97, 13.53], [45.5, 13.75]]]]}, "2014-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.53, 9.97], [45.0, 9.75], [44.47, 9.97], [44.25, 10.5], [44.47, 11.03], [45.0, 11.25], [45.53, 11.03], [45.75, 10.5], [45.53, 9.97]]], [[[43.97, 13.03], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.25, 13.65], [45.5, 13.75], [45.75, 13.65], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [46.75, 13.65], [47.0, 13.75], [47.53, 13.53], [47.75, 13.0], [47.53, 12.47], [47.0, 12.25], [46.75, 12.35], [46.5, 12.25], [46.25, 12.35], [46.18, 12.32], [46.03, 11.97], [45.68, 11.82], [45.53, 11.47], [45.0, 11.25], [44.47, 11.47], [44.32, 11.82], [43.97, 11.97], [43.75, 12.5], [43.97, 13.03]]]]}, "2014-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.85, 11.75], [43.75, 12.0], [43.85, 12.25], [43.75, 12.5], [43.97, 13.03], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.25, 13.65], [45.5, 13.75], [45.75, 13.65], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [46.75, 13.65], [47.0, 13.75], [47.53, 13.53], [47.75, 13.0], [47.53, 12.47], [47.0, 12.25], [46.75, 12.35], [46.63, 12.3], [46.75, 12.0], [46.65, 11.75], [46.75, 11.5], [46.65, 11.25], [46.75, 11.0], [46.53, 10.47], [46.0, 10.25], [45.75, 10.35], [45.68, 10.32], [45.53, 9.97], [45.0, 9.75], [44.47, 9.97], [44.32, 10.32], [43.97, 10.47], [43.75, 11.0], [43.85, 11.25], [43.75, 11.5], [43.85, 11.75]]]]}, "2014-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.97, 12.03], [43.32, 12.18], [43.35, 12.25], [43.25, 12.5], [43.47, 13.03], [44.0, 13.25], [44.25, 13.15], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.25, 13.65], [45.5, 13.75], [45.75, 13.65], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [46.75, 13.65], [47.0, 13.75], [47.53, 13.53], [47.75, 13.0], [47.53, 12.47], [47.0, 12.25], [46.75, 12.35], [46.63, 12.3], [46.75, 12.0], [46.65, 11.75], [46.75, 11.5], [46.65, 11.25], [46.75, 11.0], [46.53, 10.47], [46.0, 10.25], [45.75, 10.35], [45.68, 10.32], [45.53, 9.97], [45.0, 9.75], [44.47, 9.97], [44.32, 10.32], [44.0, 10.46], [43.5, 10.25], [42.97, 10.47], [42.75, 11.0], [42.85, 11.25], [42.75, 11.5], [42.97, 12.03]]]]}, "2014-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 11.75], [42.75, 12.0], [42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.3, 13.13], [44.47, 13.53], [45.0, 13.75], [45.53, 13.53], [45.75, 13.0], [45.97, 13.53], [46.5, 13.75], [46.75, 13.65], [47.0, 13.75], [47.53, 13.53], [47.75, 13.0], [47.53, 12.47], [47.0, 12.25], [46.75, 12.35], [46.63, 12.3], [46.75, 12.0], [46.65, 11.75], [46.75, 11.5], [46.65, 11.25], [46.75, 11.0], [46.53, 10.47], [46.0, 10.25], [45.75, 10.35], [45.5, 10.25], [45.25, 10.35], [45.0, 10.25], [44.75, 10.35], [44.5, 10.25], [44.0, 10.46], [43.5, 10.25], [42.97, 10.47], [42.75, 11.0], [42.85, 11.25], [42.75, 11.5], [42.85, 11.75]], [[45.57, 12.57], [45.88, 12.7], [45.75, 13.0], [45.57, 12.57]]]]}, "2014-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 11.75], [42.75, 12.0], [42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.53, 13.03], [44.68, 12.68], [45.03, 12.53], [45.25, 12.0], [45.03, 11.47], [44.68, 11.32], [44.53, 10.97], [44.18, 10.82], [44.03, 10.47], [43.5, 10.25], [42.97, 10.47], [42.75, 11.0], [42.85, 11.25], [42.75, 11.5], [42.85, 11.75]]]]}, "2014-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 11.75], [42.75, 12.0], [42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.53, 13.03], [44.68, 12.68], [45.03, 12.53], [45.25, 12.0], [45.03, 11.47], [44.68, 11.32], [44.53, 10.97], [44.18, 10.82], [44.03, 10.47], [43.5, 10.25], [42.97, 10.47], [42.75, 11.0], [42.85, 11.25], [42.75, 11.5], [42.85, 11.75]]]]}, "2014-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.53, 13.03], [44.75, 12.5], [44.65, 12.25], [44.75, 12.0], [44.65, 11.75], [44.75, 11.5], [44.53, 10.97], [44.0, 10.75], [43.47, 10.97], [43.25, 11.5], [43.35, 11.75], [43.32, 11.82], [42.97, 11.97], [42.75, 12.5]]]]}, "2014-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, 13.25], [44.53, 13.03], [44.75, 12.5], [44.53, 11.97], [44.0, 11.75], [43.47, 11.97], [43.25, 12.5], [43.47, 13.03], [44.0, 13.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.080603860913982}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.152215277042795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.941417980614744, 30.325330559319355, 30.61472844055777, 30.66184001284506, 30.902807161042176, 30.73417379224975, 30.595811193933912, 30.35407747156404, 29.92674630448556]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.63393397923221, 29.314599361146804, 29.045748370215506, 29.3202876571641, 30.1190192229343, 30.195434185398597, 29.977885287399545, 29.85903296065959, 29.92674630448556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.8776210253087129, -1.0071704429085344, -1.028909046503845, -1.1276756842939217, -1.0828446893056651, -1.42248057940904, -1.5669546603524296, -1.3579411854779124, -1.7172798671298324]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0315407855719059, -1.3434502907913384, -1.7688375642758274, -1.7364765360150045, -2.0763316579065076, -1.924109281154017, -2.080603860913982, -1.7975781802971937, -1.7172798671298324]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4591863456822356, -1.6310353069469676, -1.803681445410199, -1.897791725294381, -1.7259462687228897, -1.873022747110607, -2.032065234183708, -1.7590991258636128, -1.9132320024309766]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.630846696242195, -2.196573614048273, -2.3854538358037494, -2.273525259018679, -2.4481780751272737, -2.3888456640226137, -2.3535683561141343, -2.043062467653974, -1.9132320024309766]}}