{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:06.910009", "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": "2017-Oct-06_to_2017-Oct-09_299.0_-3.5"}, "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": 2017100000215}, "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 06 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2017"}, "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": 234487.58703398294}, "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": -3.5}, "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": 299.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -3.5], [-64.53, -2.97], [-64.0, -2.75], [-63.75, -2.85], [-63.68, -2.82], [-63.65, -2.75], [-63.75, -2.5], [-63.54, -2.0], [-63.75, -1.5], [-63.65, -1.25], [-63.75, -1.0], [-63.53, -0.47], [-63.18, -0.32], [-63.15, -0.25], [-63.25, 0.0], [-63.15, 0.25], [-63.25, 0.5], [-63.03, 1.03], [-62.5, 1.25], [-61.97, 1.03], [-61.82, 0.68], [-61.47, 0.53], [-61.32, 0.18], [-60.97, 0.03], [-60.82, -0.32], [-60.47, -0.47], [-60.32, -0.82], [-59.97, -0.97], [-59.75, -1.5], [-59.85, -1.75], [-59.75, -2.0], [-59.85, -2.25], [-59.75, -2.5], [-59.96, -3.0], [-59.82, -3.32], [-59.47, -3.47], [-59.25, -4.0], [-59.47, -4.53], [-59.82, -4.68], [-59.85, -4.75], [-59.75, -5.0], [-59.93, -5.43], [-59.5, -5.25], [-58.97, -5.47], [-58.75, -6.0], [-58.97, -6.53], [-59.5, -6.75], [-60.03, -6.53], [-60.25, -6.0], [-60.07, -5.57], [-60.32, -5.68], [-60.47, -6.03], [-61.0, -6.25], [-61.25, -6.15], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.53, -6.03], [-62.68, -5.68], [-63.03, -5.53], [-63.18, -5.18], [-63.53, -5.03], [-63.68, -4.68], [-64.03, -4.53], [-64.18, -4.18], [-64.53, -4.03], [-64.75, -3.5]]]]}, "2017-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -3.5], [-64.53, -2.97], [-64.0, -2.75], [-63.75, -2.85], [-63.68, -2.82], [-63.65, -2.75], [-63.75, -2.5], [-63.54, -2.0], [-63.75, -1.5], [-63.65, -1.25], [-63.75, -1.0], [-63.53, -0.47], [-63.18, -0.32], [-63.15, -0.25], [-63.25, 0.0], [-63.15, 0.25], [-63.25, 0.5], [-63.03, 1.03], [-62.5, 1.25], [-61.97, 1.03], [-61.82, 0.68], [-61.47, 0.53], [-61.32, 0.18], [-60.97, 0.03], [-60.82, -0.32], [-60.47, -0.47], [-60.32, -0.82], [-59.97, -0.97], [-59.75, -1.5], [-59.85, -1.75], [-59.82, -1.82], [-59.75, -1.85], [-59.5, -1.75], [-58.97, -1.97], [-58.75, -2.5], [-58.85, -2.75], [-58.75, -3.0], [-58.85, -3.25], [-58.75, -3.5], [-58.85, -3.75], [-58.75, -4.0], [-58.96, -4.5], [-58.75, -5.0], [-58.96, -5.5], [-58.75, -6.0], [-58.97, -6.53], [-59.5, -6.75], [-60.03, -6.53], [-60.18, -6.18], [-60.25, -6.15], [-60.5, -6.25], [-60.75, -6.15], [-61.0, -6.25], [-61.25, -6.15], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.53, -6.03], [-62.68, -5.68], [-63.03, -5.53], [-63.18, -5.18], [-63.53, -5.03], [-63.68, -4.68], [-64.03, -4.53], [-64.18, -4.18], [-64.53, -4.03], [-64.75, -3.5]]]]}, "2017-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.75, -3.5], [-64.53, -2.97], [-64.0, -2.75], [-63.75, -2.85], [-63.68, -2.82], [-63.65, -2.75], [-63.75, -2.5], [-63.54, -2.0], [-63.75, -1.5], [-63.65, -1.25], [-63.75, -1.0], [-63.53, -0.47], [-63.18, -0.32], [-63.15, -0.25], [-63.25, 0.0], [-63.15, 0.25], [-63.25, 0.5], [-63.03, 1.03], [-62.5, 1.25], [-61.97, 1.03], [-61.82, 0.68], [-61.47, 0.53], [-61.32, 0.18], [-60.97, 0.03], [-60.82, -0.32], [-60.47, -0.47], [-60.32, -0.82], [-59.97, -0.97], [-59.75, -1.5], [-59.85, -1.75], [-59.82, -1.82], [-59.75, -1.85], [-59.5, -1.75], [-58.97, -1.97], [-58.75, -2.5], [-58.85, -2.75], [-58.75, -3.0], [-58.85, -3.25], [-58.75, -3.5], [-58.85, -3.75], [-58.75, -4.0], [-58.96, -4.5], [-58.75, -5.0], [-58.96, -5.5], [-58.75, -6.0], [-58.97, -6.53], [-59.5, -6.75], [-60.03, -6.53], [-60.18, -6.18], [-60.25, -6.15], [-60.5, -6.25], [-60.75, -6.15], [-61.0, -6.25], [-61.25, -6.15], [-61.5, -6.25], [-61.75, -6.15], [-62.0, -6.25], [-62.53, -6.03], [-62.68, -5.68], [-63.03, -5.53], [-63.18, -5.18], [-63.53, -5.03], [-63.68, -4.68], [-64.03, -4.53], [-64.18, -4.18], [-64.53, -4.03], [-64.75, -3.5]]]]}, "2017-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.18, -3.82], [-62.04, -3.5], [-62.25, -3.0], [-62.04, -2.5], [-62.25, -2.0], [-62.15, -1.75], [-62.25, -1.5], [-62.03, -0.97], [-61.5, -0.75], [-60.97, -0.97], [-60.82, -1.32], [-60.47, -1.47], [-60.32, -1.82], [-60.25, -1.85], [-60.0, -1.75], [-59.75, -1.85], [-59.5, -1.75], [-58.97, -1.97], [-58.75, -2.5], [-58.85, -2.75], [-58.75, -3.0], [-58.85, -3.25], [-58.75, -3.5], [-58.85, -3.75], [-58.75, -4.0], [-58.96, -4.5], [-58.75, -5.0], [-58.97, -5.53], [-59.32, -5.68], [-59.47, -6.03], [-60.0, -6.25], [-60.25, -6.15], [-60.5, -6.25], [-60.75, -6.15], [-61.0, -6.25], [-61.53, -6.03], [-61.68, -5.68], [-62.0, -5.54], [-62.5, -5.75], [-63.03, -5.53], [-63.25, -5.0], [-63.03, -4.47], [-62.68, -4.32], [-62.53, -3.97], [-62.18, -3.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.941146796576845}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.213408630845262}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.014867413169213, 25.17188208430582, 24.672766269667193, 25.71105599573866]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.245405373047447, 24.30136929998571, 23.55539559204675, 25.39471505947614]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.2170730462065986, -2.096669548511012, -2.5334472408780067, -1.7380969130206785]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.8603124037002203, -2.8282039456472035, -3.941146796576845, -2.3173462808612157]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.765661567681779, -1.63300334708774, -2.0607079947903943, -1.3768954020439506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2541843743021555, -2.023251774263132, -2.8083889634949153, -1.643905199310738]}}