{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:31.166783", "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": "2024-Dec-31_to_2025-Jan-05_279.5_-5.5"}, "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": 2024120000743}, "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": "December 31 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 05 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 58246.4336944639}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -5.5}, "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": 279.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "279.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 282.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -9.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-76.85, -9.25], [-76.75, -9.5], [-76.97, -10.03], [-77.5, -10.25], [-77.75, -10.15], [-78.0, -10.25], [-78.53, -10.03], [-78.75, -9.5], [-78.65, -9.25], [-78.75, -9.0], [-78.65, -8.75], [-78.68, -8.68], [-79.03, -8.53], [-79.18, -8.18], [-79.53, -8.03], [-79.68, -7.68], [-80.03, -7.53], [-80.18, -7.18], [-80.53, -7.03], [-80.68, -6.68], [-81.03, -6.53], [-81.25, -6.0], [-81.15, -5.75], [-81.25, -5.5], [-81.15, -5.25], [-81.25, -5.0], [-81.03, -4.47], [-80.5, -4.25], [-79.97, -4.47], [-79.82, -4.82], [-79.47, -4.97], [-79.25, -5.5], [-79.35, -5.75], [-79.32, -5.82], [-79.25, -5.85], [-79.0, -5.75], [-78.47, -5.97], [-78.25, -6.5], [-78.35, -6.75], [-78.32, -6.82], [-78.25, -6.85], [-78.0, -6.75], [-77.47, -6.97], [-77.25, -7.5], [-77.46, -8.0], [-77.32, -8.32], [-76.97, -8.47], [-76.75, -9.0], [-76.85, -9.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-31T11:30:00.000000000": 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"description": "The daily evolution of maximum t2m.", "value": [10.062243398030603, 3.6274442036946652, 2.494807179768884, 2.3018407185872434, 3.444813028971396, 23.43183288574221]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4075713701209907, -1.7471050406991493, -1.943930761519871, -2.0574474450800033, -1.6733946907203776, -1.5946912436385787]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0265065023446027, -2.781431082394761, -2.990362658942672, -3.196009486115031, -2.0923970080756362, -1.5946912436385787]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5668142252799224, -1.888159906496807, -2.061759627321798, -2.130034898714997, -1.6248512189857578, -1.5966104132999133]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0100056845335654, -3.0176143480789093, -3.1588741147938726, -3.5084615339551424, -1.9028685414641344, -1.5966104132999133]}}