{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:27.377679", "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-15_to_2017-Jul-18_311.5_-10.5"}, "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": 2017070000628}, "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 15 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 18 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": 51572.05024819156}, "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": -10.5}, "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": 311.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "311.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 313.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -9.0], [-50.53, -8.47], [-50.0, -8.25], [-49.47, -8.47], [-49.32, -8.82], [-48.97, -8.97], [-48.82, -9.32], [-48.47, -9.47], [-48.32, -9.82], [-48.25, -9.85], [-48.0, -9.75], [-47.47, -9.97], [-47.32, -10.32], [-46.97, -10.47], [-46.82, -10.82], [-46.75, -10.85], [-46.5, -10.75], [-45.97, -10.97], [-45.75, -11.5], [-45.85, -11.75], [-45.75, -12.0], [-45.97, -12.53], [-46.5, -12.75], [-46.75, -12.65], [-47.0, -12.75], [-47.5, -12.54], [-48.0, -12.75], [-48.53, -12.53], [-48.75, -12.0], [-48.62, -11.7], [-49.03, -11.53], [-49.25, -11.0], [-49.15, -10.75], [-49.18, -10.68], [-49.53, -10.53], [-49.68, -10.18], [-50.03, -10.03], [-50.18, -9.68], [-50.53, -9.53], [-50.75, -9.0]]]]}, "2017-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -9.0], [-50.53, -8.47], [-50.0, -8.25], [-49.47, -8.47], [-49.32, -8.82], [-48.97, -8.97], [-48.82, -9.32], [-48.47, -9.47], [-48.32, -9.82], [-48.25, -9.85], [-48.0, -9.75], [-47.47, -9.97], [-47.32, -10.32], [-46.97, -10.47], [-46.82, -10.82], [-46.75, -10.85], [-46.5, -10.75], [-45.97, -10.97], [-45.75, -11.5], [-45.85, -11.75], [-45.75, -12.0], [-45.97, -12.53], [-46.5, -12.75], [-46.75, -12.65], [-47.0, -12.75], [-47.5, -12.54], [-48.0, -12.75], [-48.53, -12.53], [-48.68, -12.18], [-48.75, -12.15], [-49.0, -12.25], [-49.53, -12.03], [-49.75, -11.5], [-49.53, -10.97], [-49.18, -10.82], [-49.15, -10.75], [-49.18, -10.68], [-49.53, -10.53], [-49.68, -10.18], [-50.03, -10.03], [-50.18, -9.68], [-50.53, -9.53], [-50.75, -9.0]]]]}, "2017-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-50.75, -9.0], [-50.53, -8.47], [-50.0, -8.25], [-49.47, -8.47], [-49.32, -8.82], [-48.97, -8.97], [-48.82, -9.32], [-48.47, -9.47], [-48.32, -9.82], [-48.25, -9.85], [-48.0, -9.75], [-47.47, -9.97], [-47.32, -10.32], [-46.97, -10.47], [-46.82, -10.82], [-46.75, -10.85], [-46.5, -10.75], [-45.97, -10.97], [-45.75, -11.5], [-45.85, -11.75], [-45.75, -12.0], [-45.97, -12.53], [-46.5, -12.75], [-46.75, -12.65], [-47.0, -12.75], [-47.5, -12.54], [-48.0, -12.75], [-48.53, -12.53], [-48.68, -12.18], [-48.75, -12.15], [-49.0, -12.25], [-49.53, -12.03], [-49.75, -11.5], [-49.53, -10.97], [-49.18, -10.82], [-49.15, -10.75], [-49.18, -10.68], [-49.53, -10.53], [-49.68, -10.18], [-50.03, -10.03], [-50.18, -9.68], [-50.53, -9.53], [-50.75, -9.0]]]]}, "2017-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.53, -12.03], [-49.75, -11.5], [-49.53, -10.97], [-49.0, -10.75], [-48.75, -10.85], [-48.5, -10.75], [-48.25, -10.85], [-48.0, -10.75], [-47.47, -10.97], [-47.25, -11.5], [-47.35, -11.75], [-47.25, -12.0], [-47.47, -12.53], [-48.0, -12.75], [-48.53, -12.53], [-48.68, -12.18], [-48.75, -12.15], [-49.0, -12.25], [-49.53, -12.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0755603365091133}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5077110686796937}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.262050641965118, 24.284715306219027, 24.439291186002038, 24.877028179751278]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.598346518918163, 21.333826485227576, 21.644858308625942, 24.377278764749292]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.525240261698802, -1.6093425973710263, -1.436408970352856, -1.3174588140637127]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.944959426976368, -2.0755603365091133, -1.732675882379965, -1.4684325855162115]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5605834180210985, -1.6489215660993832, -1.4718430888515772, -1.3292777442646337]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9774403234398148, -2.0938650313245324, -1.6423170119088282, -1.4604687866546566]}}