{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:25.902470", "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-Aug-09_to_2024-Aug-11_292.0_-12.5"}, "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": 2024080000299}, "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": "August 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 11 2024"}, "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": 66506.4211078231}, "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": ["Bolivia, Plurinational State of", "Brazil", "Peru"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "America", "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": -12.5}, "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": 292.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "292.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 290.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 293.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-70.03, -10.97], [-69.68, -10.82], [-69.53, -10.47], [-69.0, -10.25], [-68.75, -10.35], [-68.5, -10.25], [-68.25, -10.35], [-68.0, -10.25], [-67.75, -10.35], [-67.5, -10.25], [-66.97, -10.47], [-66.75, -11.0], [-66.85, -11.25], [-66.82, -11.32], [-66.47, -11.47], [-66.25, -12.0], [-66.35, -12.25], [-66.25, -12.5], [-66.35, -12.75], [-66.25, -13.0], [-66.47, -13.53], [-67.0, -13.75], [-67.25, -13.65], [-67.32, -13.68], [-67.47, -14.03], [-68.0, -14.25], [-68.53, -14.03], [-68.68, -13.68], [-69.03, -13.53], [-69.25, -13.0], [-69.12, -12.7], [-69.53, -12.53], [-69.68, -12.18], [-70.03, -12.03], [-70.25, -11.5], [-70.03, -10.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.02999999999997, -12.03], [-70.25, -11.5], [-70.02999999999997, -10.97], [-69.68, -10.82], [-69.52999999999997, -10.47], [-69.0, -10.25], [-68.75, -10.35], [-68.5, -10.25], [-68.25, -10.35], [-68.0, -10.25], [-67.75, -10.35], [-67.5, -10.25], [-66.97000000000003, -10.47], [-66.75, -11.0], [-66.85000000000002, -11.25], [-66.82, -11.32], [-66.47000000000003, -11.47], [-66.25, -12.0], [-66.35000000000002, -12.25], [-66.25, -12.5], [-66.35000000000002, -12.75], [-66.25, -13.0], [-66.47000000000003, -13.53], [-67.0, -13.75], [-67.25, -13.65], [-67.32, -13.68], [-67.47000000000003, -14.03], [-68.0, -14.25], [-68.52999999999997, -14.03], [-68.68, -13.68], [-69.02999999999997, -13.53], [-69.25, -13.0], [-69.12, -12.7], [-69.52999999999997, -12.53], [-69.68, -12.18], [-70.02999999999997, -12.03]]]]}, "2024-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.02999999999997, -12.03], [-70.25, -11.5], [-70.02999999999997, -10.97], [-69.68, -10.82], [-69.52999999999997, -10.47], [-69.0, -10.25], [-68.75, -10.35], [-68.5, -10.25], [-68.25, -10.35], [-68.0, -10.25], [-67.75, -10.35], [-67.5, -10.25], [-66.97000000000003, -10.47], [-66.75, -11.0], [-66.85000000000002, -11.25], [-66.82, -11.32], [-66.47000000000003, -11.47], [-66.25, -12.0], [-66.35000000000002, -12.25], [-66.25, -12.5], [-66.35000000000002, -12.75], [-66.25, -13.0], [-66.47000000000003, -13.53], [-67.0, -13.75], [-67.25, -13.65], [-67.32, -13.68], [-67.47000000000003, -14.03], [-68.0, -14.25], [-68.52999999999997, -14.03], [-68.68, -13.68], [-69.02999999999997, -13.53], [-69.25, -13.0], [-69.12, -12.7], [-69.52999999999997, -12.53], [-69.68, -12.18], [-70.02999999999997, -12.03]]]]}, "2024-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.02999999999997, -12.03], [-70.25, -11.5], [-70.02999999999997, -10.97], [-69.68, -10.82], [-69.52999999999997, -10.47], [-69.0, -10.25], [-68.75, -10.35], [-68.5, -10.25], [-68.25, -10.35], [-68.0, -10.25], [-67.75, -10.35], [-67.5, -10.25], [-66.97000000000003, -10.47], [-66.75, -11.0], [-66.85000000000002, -11.25], [-66.82, -11.32], [-66.47000000000003, -11.47], [-66.25, -12.0], [-66.35000000000002, -12.25], [-66.25, -12.5], [-66.35000000000002, -12.75], [-66.25, -13.0], [-66.47000000000003, -13.53], [-67.0, -13.75], [-67.25, -13.65], [-67.32, -13.68], [-67.47000000000003, -14.03], [-68.0, -14.25], [-68.52999999999997, -14.03], [-68.68, -13.68], [-69.02999999999997, -13.53], [-69.25, -13.0], [-69.12, -12.7], [-69.52999999999997, -12.53], [-69.68, -12.18], [-70.02999999999997, -12.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.162106848054066}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.980191393427619}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.938797985257395, 17.931455093469708, 20.444655423327333]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.39670476707539, 16.963454268977614, 19.58479807911732]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.11699601469327, -7.167370594836135, -4.656207570753452]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.162106848054066, -8.156920465712744, -5.338312829392692]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2459916991033047, -2.6394318466081756, -1.672121370564078]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.919363689413599, -2.8687444903702937, -1.8089420880079528]}}