{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:31.062031", "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-Oct-21_to_2014-Oct-27_308.0_-4.5"}, "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": 2014100000761}, "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": "October 21 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 104694.30740686311}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -4.5}, "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": 308.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -3.47], [-52.5, -3.25], [-52.25, -3.35], [-52.0, -3.25], [-51.47, -3.47], [-51.3, -3.88], [-51.0, -3.75], [-50.47, -3.97], [-50.25, -4.5], [-50.47, -5.03], [-51.0, -5.25], [-51.5, -5.04], [-52.0, -5.25], [-52.25, -5.15], [-52.5, -5.25], [-53.03, -5.03], [-53.25, -4.5], [-53.15, -4.25], [-53.25, -4.0], [-53.03, -3.47]]]]}, "2014-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -3.47], [-52.5, -3.25], [-52.25, -3.35], [-52.0, -3.25], [-51.47, -3.47], [-51.3, -3.88], [-51.0, -3.75], [-50.47, -3.97], [-50.25, -4.5], [-50.46, -5.0], [-50.32, -5.32], [-49.97, -5.47], [-49.75, -6.0], [-49.85, -6.25], [-49.75, -6.5], [-49.85, -6.75], [-49.75, -7.0], [-49.97, -7.53], [-50.5, -7.75], [-50.75, -7.65], [-51.0, -7.75], [-51.53, -7.53], [-51.75, -7.0], [-51.65, -6.75], [-51.75, -6.5], [-51.54, -6.0], [-51.7, -5.62], [-52.0, -5.75], [-52.53, -5.53], [-52.68, -5.18], [-53.03, -5.03], [-53.25, -4.5], [-53.15, -4.25], [-53.25, -4.0], [-53.03, -3.47]]]]}, "2014-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -2.97], [-53.0, -2.75], [-52.5, -2.96], [-52.0, -2.75], [-51.75, -2.85], [-51.5, -2.75], [-51.25, -2.85], [-51.0, -2.75], [-50.47, -2.97], [-50.25, -3.5], [-50.35, -3.75], [-50.25, -4.0], [-50.35, -4.25], [-50.25, -4.5], [-50.35, -4.75], [-50.25, -5.0], [-50.35, -5.25], [-50.32, -5.32], [-49.97, -5.47], [-49.75, -6.0], [-49.85, -6.25], [-49.75, -6.5], [-49.85, -6.75], [-49.75, -7.0], [-49.97, -7.53], [-50.5, -7.75], [-50.75, -7.65], [-51.0, -7.75], [-51.25, -7.65], [-51.5, -7.75], [-52.03, -7.53], [-52.25, -7.0], [-52.15, -6.75], [-52.25, -6.5], [-52.12, -6.2], [-52.53, -6.03], [-52.68, -5.68], [-53.03, -5.53], [-53.25, -5.0], [-53.15, -4.75], [-53.18, -4.68], [-53.53, -4.53], [-53.75, -4.0], [-53.65, -3.75], [-53.75, -3.5], [-53.53, -2.97]]]]}, "2014-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -2.97], [-53.0, -2.75], [-52.5, -2.96], [-52.0, -2.75], [-51.75, -2.85], [-51.5, -2.75], [-51.25, -2.85], [-51.0, -2.75], [-50.47, -2.97], [-50.25, -3.5], [-50.35, -3.75], [-50.25, -4.0], [-50.35, -4.25], [-50.25, -4.5], [-50.35, -4.75], [-50.25, -5.0], [-50.35, -5.25], [-50.32, -5.32], [-49.97, -5.47], [-49.75, -6.0], [-49.85, -6.25], [-49.75, -6.5], [-49.85, -6.75], [-49.75, -7.0], [-49.97, -7.53], [-50.5, -7.75], [-50.75, -7.65], [-51.0, -7.75], [-51.25, -7.65], [-51.5, -7.75], [-52.03, -7.53], [-52.25, -7.0], [-52.15, -6.75], [-52.25, -6.5], [-52.12, -6.2], [-52.53, -6.03], [-52.68, -5.68], [-53.03, -5.53], [-53.25, -5.0], [-53.15, -4.75], [-53.18, -4.68], [-53.53, -4.53], [-53.75, -4.0], [-53.65, -3.75], [-53.75, -3.5], [-53.53, -2.97]]]]}, "2014-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.18, -4.68], [-54.53, -4.53], [-54.75, -4.0], [-54.53, -3.47], [-54.18, -3.32], [-54.03, -2.97], [-53.5, -2.75], [-53.25, -2.85], [-53.0, -2.75], [-52.5, -2.96], [-52.0, -2.75], [-51.75, -2.85], [-51.5, -2.75], [-51.25, -2.85], [-51.0, -2.75], [-50.47, -2.97], [-50.25, -3.5], [-50.35, -3.75], [-50.25, -4.0], [-50.35, -4.25], [-50.25, -4.5], [-50.35, -4.75], [-50.25, -5.0], [-50.35, -5.25], [-50.25, -5.5], [-50.47, -6.03], [-50.87, -6.2], [-50.75, -6.5], [-50.85, -6.75], [-50.75, -7.0], [-50.97, -7.53], [-51.5, -7.75], [-52.03, -7.53], [-52.25, -7.0], [-52.15, -6.75], [-52.25, -6.5], [-52.12, -6.2], [-52.53, -6.03], [-52.68, -5.68], [-52.75, -5.65], [-53.0, -5.75], [-53.25, -5.65], [-53.32, -5.68], [-53.47, -6.03], [-54.0, -6.25], [-54.53, -6.03], [-54.75, -5.5], [-54.53, -4.97], [-54.18, -4.82], [-54.15, -4.75], [-54.18, -4.68]]]]}, "2014-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.18, -4.68], [-54.53, -4.53], [-54.75, -4.0], [-54.53, -3.47], [-54.18, -3.32], [-54.03, -2.97], [-53.5, -2.75], [-53.25, -2.85], [-53.0, -2.75], [-52.5, -2.96], [-52.0, -2.75], [-51.75, -2.85], [-51.5, -2.75], [-51.25, -2.85], [-51.0, -2.75], [-50.47, -2.97], [-50.25, -3.5], [-50.35, -3.75], [-50.25, -4.0], [-50.35, -4.25], [-50.25, -4.5], [-50.35, -4.75], [-50.25, -5.0], [-50.35, -5.25], [-50.25, -5.5], [-50.47, -6.03], [-50.87, -6.2], [-50.75, -6.5], [-50.85, -6.75], [-50.75, -7.0], [-50.97, -7.53], [-51.5, -7.75], [-52.03, -7.53], [-52.25, -7.0], [-52.15, -6.75], [-52.25, -6.5], [-52.12, -6.2], [-52.53, -6.03], [-52.68, -5.68], [-52.75, -5.65], [-53.0, -5.75], [-53.25, -5.65], [-53.32, -5.68], [-53.47, -6.03], [-54.0, -6.25], [-54.53, -6.03], [-54.75, -5.5], [-54.53, -4.97], [-54.18, -4.82], [-54.15, -4.75], [-54.18, -4.68]]]]}, "2014-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.18, -4.68], [-54.53, -4.53], [-54.75, -4.0], [-54.53, -3.47], [-54.18, -3.32], [-54.03, -2.97], [-53.5, -2.75], [-53.25, -2.85], [-53.0, -2.75], [-52.47, -2.97], [-52.25, -3.5], [-52.35, -3.75], [-52.25, -4.0], [-52.46, -4.5], [-52.25, -5.0], [-52.47, -5.53], [-53.0, -5.75], [-53.25, -5.65], [-53.32, -5.68], [-53.47, -6.03], [-54.0, -6.25], [-54.53, -6.03], [-54.75, -5.5], [-54.53, -4.97], [-54.18, -4.82], [-54.15, -4.75], [-54.18, -4.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.6154783356845996}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.004125456954088}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.59318086507733, 24.973010305946787, 24.209655790378918, 25.24485528736551, 25.500988131715246, 24.642299859240325, 25.374773086572986]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.387950078345, 24.001140503695638, 23.294459811149068, 23.580027241842913, 24.574597680865793, 22.82179113892977, 24.762627848704085]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.567398677541587, -1.5666902108491267, -2.7088824271295655, -1.669011831444131, -1.5909902237530047, -2.4491113821531267, -1.618438398777673]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6635761044864807, -1.893855977454848, -3.6154783356845996, -2.02970590802488, -1.9224507953217653, -3.583196950262902, -2.06214958023088]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5209285486865294, -1.472985225128613, -2.551520706279601, -1.6200787397206837, -1.5298088866901323, -2.4227567949071833, -1.55618158484019]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6835858418616831, -1.6647525597510338, -3.428798880561376, -1.8989031624892945, -1.8241094629124128, -3.56794407763114, -1.7781182163760902]}}