{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:27.163309", "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-Jul-14_to_2017-Jul-16_318.5_-11.0"}, "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": 2017070000582}, "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 14 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 57803.87007466127}, "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.E.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": -11.0}, "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": 318.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "318.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 317.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 319.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.03, -9.97], [-42.68, -9.82], [-42.65, -9.75], [-42.75, -9.5], [-42.65, -9.25], [-42.75, -9.0], [-42.65, -8.75], [-42.75, -8.5], [-42.53, -7.97], [-42.0, -7.75], [-41.47, -7.97], [-41.32, -8.32], [-40.97, -8.47], [-40.82, -8.82], [-40.47, -8.97], [-40.32, -9.32], [-39.97, -9.47], [-39.75, -10.0], [-39.97, -10.53], [-40.32, -10.68], [-40.47, -11.03], [-40.82, -11.18], [-40.85, -11.25], [-40.75, -11.5], [-40.97, -12.03], [-41.5, -12.25], [-41.75, -12.15], [-42.0, -12.25], [-42.53, -12.03], [-42.68, -11.68], [-43.03, -11.53], [-43.25, -11.0], [-43.15, -10.75], [-43.25, -10.5], [-43.03, -9.97]]]]}, "2017-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.03, -9.97], [-42.68, -9.82], [-42.65, -9.75], [-42.75, -9.5], [-42.65, -9.25], [-42.75, -9.0], [-42.65, -8.75], [-42.75, -8.5], [-42.53, -7.97], [-42.0, -7.75], [-41.47, -7.97], [-41.32, -8.32], [-40.97, -8.47], [-40.82, -8.82], [-40.47, -8.97], [-40.32, -9.32], [-39.97, -9.47], [-39.75, -10.0], [-39.97, -10.53], [-40.32, -10.68], [-40.47, -11.03], [-40.82, -11.18], [-40.85, -11.25], [-40.75, -11.5], [-40.97, -12.03], [-41.5, -12.25], [-41.75, -12.15], [-42.0, -12.25], [-42.53, -12.03], [-42.68, -11.68], [-43.03, -11.53], [-43.25, -11.0], [-43.15, -10.75], [-43.25, -10.5], [-43.03, -9.97]]]]}, "2017-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.03, -9.97], [-42.68, -9.82], [-42.65, -9.75], [-42.75, -9.5], [-42.65, -9.25], [-42.75, -9.0], [-42.65, -8.75], [-42.75, -8.5], [-42.53, -7.97], [-42.0, -7.75], [-41.47, -7.97], [-41.32, -8.32], [-40.97, -8.47], [-40.82, -8.82], [-40.47, -8.97], [-40.32, -9.32], [-39.97, -9.47], [-39.75, -10.0], [-39.97, -10.53], [-40.32, -10.68], [-40.47, -11.03], [-40.82, -11.18], [-40.85, -11.25], [-40.75, -11.5], [-40.97, -12.03], [-41.5, -12.25], [-41.75, -12.15], [-42.0, -12.25], [-42.53, -12.03], [-42.68, -11.68], [-43.03, -11.53], [-43.25, -11.0], [-43.15, -10.75], [-43.25, -10.5], [-43.03, -9.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.2060805107757915}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6815975624655295}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.67410580026001, 21.84389353170019, 21.853570392107656]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.4296572504727, 18.763061833477366, 18.906970824779364]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.818592668281374, -1.624170292973917, -1.602029726141298]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.2060805107757915, -1.8866237016603122, -1.760102829511709]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.847878365154383, -1.6310430064503652, -1.5969464333458108]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2240239915895064, -1.8343747516315891, -1.7962263633727293]}}