{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:02.638716", "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": "2019-Jul-07_to_2019-Jul-10_306.0_-6.0"}, "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": 2019070000319}, "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 07 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 10 2019"}, "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": 95351.49012757598}, "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": -6.0}, "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": 306.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "306.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 302.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -6.03], [-57.75, -5.5], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.68, -4.82], [-56.53, -4.47], [-56.0, -4.25], [-55.75, -4.35], [-55.5, -4.25], [-55.25, -4.35], [-55.18, -4.32], [-55.03, -3.97], [-54.5, -3.75], [-53.97, -3.97], [-53.82, -4.32], [-53.75, -4.35], [-53.5, -4.25], [-53.25, -4.35], [-53.0, -4.25], [-52.47, -4.47], [-52.32, -4.82], [-51.97, -4.97], [-51.82, -5.32], [-51.47, -5.47], [-51.25, -6.0], [-51.35, -6.25], [-51.25, -6.5], [-51.47, -7.03], [-52.0, -7.25], [-52.25, -7.15], [-52.5, -7.25], [-52.75, -7.15], [-53.0, -7.25], [-53.25, -7.15], [-53.5, -7.25], [-53.75, -7.15], [-54.0, -7.25], [-54.25, -7.15], [-54.5, -7.25], [-55.03, -7.03], [-55.18, -6.68], [-55.53, -6.53], [-55.68, -6.18], [-55.75, -6.15], [-56.0, -6.25], [-56.25, -6.15], [-56.5, -6.25], [-56.75, -6.15], [-57.0, -6.25], [-57.53, -6.03]]]]}, "2019-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -6.03], [-57.75, -5.5], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.68, -4.82], [-56.53, -4.47], [-56.0, -4.25], [-55.75, -4.35], [-55.5, -4.25], [-55.25, -4.35], [-55.18, -4.32], [-55.03, -3.97], [-54.5, -3.75], [-53.97, -3.97], [-53.82, -4.32], [-53.75, -4.35], [-53.5, -4.25], [-53.25, -4.35], [-53.0, -4.25], [-52.47, -4.47], [-52.32, -4.82], [-51.97, -4.97], [-51.82, -5.32], [-51.47, -5.47], [-51.25, -6.0], [-51.35, -6.25], [-51.25, -6.5], [-51.47, -7.03], [-52.0, -7.25], [-52.25, -7.15], [-52.5, -7.25], [-52.75, -7.15], [-53.0, -7.25], [-53.25, -7.15], [-53.5, -7.25], [-53.75, -7.15], [-54.0, -7.25], [-54.25, -7.15], [-54.5, -7.25], [-55.03, -7.03], [-55.18, -6.68], [-55.53, -6.53], [-55.68, -6.18], [-55.75, -6.15], [-56.0, -6.25], [-56.25, -6.15], [-56.5, -6.25], [-56.75, -6.15], [-57.0, -6.25], [-57.53, -6.03]]]]}, "2019-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-57.53, -6.03], [-57.75, -5.5], [-57.53, -4.97], [-57.0, -4.75], [-56.75, -4.85], [-56.68, -4.82], [-56.53, -4.47], [-56.0, -4.25], [-55.75, -4.35], [-55.5, -4.25], [-55.25, -4.35], [-55.18, 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"max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.834321957859629}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.9564534448901612}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.138423688391583, 24.205347860817312, 24.423704681688776, 24.763088229735274]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.563919184135273, 23.580091552503916, 23.88535506290424, 24.627111600168462]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0599183668484877, -2.0234825293207415, -1.8299402823118898, -1.501984725513599]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.606049193735828, -2.834321957859629, -2.435301320503413, -1.5859671803368656]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9077984159614567, -1.9118614829160878, -1.70038576543029, -1.3694227774900893]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.377844379093634, -2.53114073384428, -2.4706027264843393, -1.5029426881264034]}}