{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:25.447639", "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-02_to_2017-Jul-04_283.0_-8.0"}, "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": 2017070000140}, "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 02 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 04 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": 52149.028424586744}, "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": ["Peru"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.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": -8.0}, "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": 283.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 280.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-07-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.53, -5.47], [-79.0, -5.25], [-78.75, -5.35], [-78.5, -5.25], [-78.0, -5.46], [-77.5, -5.25], [-76.97, -5.47], [-76.82, -5.82], [-76.47, -5.97], [-76.25, -6.5], [-76.35, -6.75], [-76.32, -6.82], [-75.97, -6.97], [-75.82, -7.32], [-75.47, -7.47], [-75.25, -8.0], [-75.47, -8.53], [-75.82, -8.68], [-75.97, -9.03], [-76.5, -9.25], [-77.03, -9.03], [-77.18, -8.68], [-77.53, -8.53], [-77.68, -8.18], [-77.75, -8.15], [-78.0, -8.25], [-78.53, -8.03], [-78.75, -7.5], [-78.65, -7.25], [-78.7, -7.12], [-79.0, -7.25], [-79.53, -7.03], [-79.75, -6.5], [-79.65, -6.25], [-79.75, -6.0], [-79.53, -5.47]]]]}, "2017-07-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.53, -5.47], [-79.0, -5.25], [-78.75, -5.35], [-78.5, -5.25], [-78.0, -5.46], [-77.5, -5.25], [-76.97, -5.47], [-76.82, -5.82], [-76.47, -5.97], [-76.25, -6.5], [-76.35, -6.75], [-76.32, -6.82], [-75.97, -6.97], [-75.82, -7.32], [-75.47, -7.47], [-75.25, -8.0], [-75.47, -8.53], [-75.82, -8.68], [-75.97, -9.03], [-76.5, -9.25], [-77.03, -9.03], [-77.18, -8.68], [-77.53, -8.53], [-77.68, -8.18], [-77.75, -8.15], [-78.0, -8.25], [-78.53, -8.03], [-78.75, -7.5], [-78.65, -7.25], [-78.7, -7.12], [-79.0, -7.25], [-79.53, -7.03], [-79.75, -6.5], [-79.65, -6.25], [-79.75, -6.0], [-79.53, -5.47]]]]}, "2017-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.53, -5.47], [-79.0, -5.25], [-78.75, -5.35], [-78.5, -5.25], [-78.0, -5.46], [-77.5, -5.25], [-76.97, -5.47], [-76.82, -5.82], [-76.47, -5.97], [-76.25, -6.5], [-76.35, -6.75], [-76.32, -6.82], [-75.97, -6.97], [-75.82, -7.32], [-75.47, -7.47], [-75.25, -8.0], [-75.47, -8.53], [-75.82, -8.68], [-75.97, -9.03], [-76.5, -9.25], [-77.03, -9.03], [-77.18, -8.68], [-77.53, -8.53], [-77.68, -8.18], [-77.75, -8.15], [-78.0, -8.25], [-78.53, -8.03], [-78.75, -7.5], [-78.65, -7.25], [-78.7, -7.12], [-79.0, -7.25], [-79.53, -7.03], [-79.75, -6.5], [-79.65, -6.25], [-79.75, -6.0], [-79.53, -5.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0608592551049583}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4690653781694625}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.029304537576934, 14.97149257472887, 14.801950397332178]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.561679167285206, 10.27074918428491, 9.914467192961013]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.380752822691731, -1.4342210897064882, -1.592222222110168]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.048273649770522, -1.900118815782946, -2.0608592551049583]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6826881638142814, -1.6756438942941316, -1.7936112004256726]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.632231745296351, -2.094400980466622, -2.4629025739304917]}}