{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:23.940388", "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": "2013-May-30_to_2013-Jun-03_44.0_23.5"}, "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": 2013050001242}, "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": "May 30 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 59254.17733159154}, "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": ["Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "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": 23.5}, "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": 41.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, 24.25], [44.53, 24.03], [44.75, 23.5], [44.53, 22.97], [44.0, 22.75], [43.47, 22.97], [43.25, 23.5], [43.47, 24.03], [44.0, 24.25]]]]}, "2013-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, 24.25], [44.53, 24.03], [44.75, 23.5], [44.53, 22.97], [44.0, 22.75], [43.47, 22.97], [43.25, 23.5], [43.47, 24.03], [44.0, 24.25]]]]}, "2013-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 24.5], [41.47, 25.03], [42.0, 25.25], [42.25, 25.15], [42.32, 25.18], [42.47, 25.53], [43.0, 25.75], [43.53, 25.53], [43.68, 25.18], [43.75, 25.15], [43.82, 25.18], [43.97, 25.53], [44.5, 25.75], [45.03, 25.53], [45.18, 25.18], [45.53, 25.03], [45.75, 24.5], [45.53, 23.97], [45.18, 23.82], [45.03, 23.47], [44.68, 23.32], [44.53, 22.97], [44.18, 22.82], [44.03, 22.47], [43.5, 22.25], [42.97, 22.47], [42.8, 22.88], [42.5, 22.75], [42.25, 22.85], [42.0, 22.75], [41.75, 22.85], [41.5, 22.75], [40.97, 22.97], [40.75, 23.5], [40.97, 24.03], [41.32, 24.18], [41.35, 24.25], [41.25, 24.5]]]]}, "2013-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 24.5], [41.47, 25.03], [42.0, 25.25], [42.25, 25.15], [42.32, 25.18], [42.47, 25.53], [43.0, 25.75], [43.53, 25.53], [43.68, 25.18], [43.75, 25.15], [43.82, 25.18], [43.97, 25.53], [44.5, 25.75], [45.03, 25.53], [45.18, 25.18], [45.53, 25.03], [45.75, 24.5], [45.53, 23.97], [45.18, 23.82], [45.03, 23.47], [44.68, 23.32], [44.53, 22.97], [44.18, 22.82], [44.03, 22.47], [43.5, 22.25], [42.97, 22.47], [42.8, 22.88], [42.5, 22.75], [42.25, 22.85], [42.0, 22.75], [41.75, 22.85], [41.5, 22.75], [40.97, 22.97], [40.75, 23.5], [40.97, 24.03], [41.32, 24.18], [41.35, 24.25], [41.25, 24.5]]]]}, "2013-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[41.25, 24.5], [41.47, 25.03], [42.0, 25.25], [42.25, 25.15], [42.32, 25.18], [42.47, 25.53], [43.0, 25.75], [43.53, 25.53], [43.68, 25.18], [43.75, 25.15], [43.82, 25.18], [43.97, 25.53], [44.5, 25.75], [45.03, 25.53], [45.18, 25.18], [45.53, 25.03], [45.75, 24.5], [45.53, 23.97], [45.18, 23.82], [45.03, 23.47], [44.68, 23.32], [44.53, 22.97], [44.18, 22.82], [44.03, 22.47], [43.5, 22.25], [42.97, 22.47], [42.8, 22.88], [42.5, 22.75], [42.25, 22.85], [42.0, 22.75], [41.75, 22.85], [41.5, 22.75], [40.97, 22.97], [40.75, 23.5], [40.97, 24.03], [41.32, 24.18], [41.35, 24.25], [41.25, 24.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.2316987090273983}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.502226646514602}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.45401421137916, 32.958824963027496, 31.653804206070618, 31.560768639654043, 31.29197234929228]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.45401421137916, 32.958824963027496, 30.893218797343195, 30.97100040105022, 30.600109141740973]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.243973515088669, -1.8448384468038057, -2.293643382004594, -2.4507210204932957, -2.8059175051952847]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.243973515088669, -1.8448384468038057, -2.8233047534398565, -2.840367233496181, -3.2316987090273983]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7933514839939995, -1.48774354466176, -1.6556471862014412, -1.812087623254587, -2.0588229990569653]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7933514839939995, -1.48774354466176, -1.8534832827936008, -2.2434241249858617, -2.5036416629353933]}}