{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:21.911430", "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-Oct-19_to_2024-Oct-21_309.0_-15.5"}, "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": 2024100000386}, "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": "October 19 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 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": 113004.47752964232}, "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"]}, "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": -15.5}, "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": 309.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 307.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-53.03, -15.47], [-52.68, -15.32], [-52.53, -14.97], [-52.18, -14.82], [-52.15, -14.75], [-52.25, -14.5], [-52.15, -14.25], [-52.25, -14.0], [-52.03, -13.47], [-51.5, -13.25], [-50.97, -13.47], [-50.82, -13.82], [-50.75, -13.85], [-50.5, -13.75], [-50.25, -13.85], [-50.0, -13.75], [-49.5, -13.96], [-49.0, -13.75], [-48.75, -13.85], [-48.5, -13.75], [-47.97, -13.97], [-47.75, -14.5], [-47.97, -15.03], [-48.37, -15.2], [-48.25, -15.5], [-48.47, -16.03], [-48.82, -16.18], [-48.97, -16.53], [-49.32, -16.68], [-49.35, -16.75], [-49.32, -16.82], [-48.97, -16.97], [-48.75, -17.5], [-48.97, -18.03], [-49.32, -18.18], [-49.47, -18.53], [-50.0, -18.75], [-50.53, -18.53], [-50.68, -18.18], [-51.03, -18.03], [-51.18, -17.68], [-51.53, -17.53], [-51.68, -17.18], [-51.75, -17.15], [-52.0, -17.25], [-52.53, -17.03], [-52.68, -16.68], [-53.03, -16.53], [-53.25, -16.0], [-53.03, -15.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.02999999999997, -16.53], [-53.25, -16.0], [-53.02999999999997, -15.47], [-52.68000000000001, -15.32], [-52.52999999999997, -14.97], [-52.18000000000001, -14.82], [-52.14999999999998, -14.75], [-52.25, -14.5], [-52.14999999999998, -14.25], [-52.25, -14.0], [-52.02999999999997, -13.47], [-51.5, -13.25], [-50.97000000000003, -13.47], [-50.81999999999999, -13.82], [-50.75, -13.85], [-50.5, -13.75], [-50.25, -13.85], [-50.0, -13.75], [-49.5, -13.96], [-49.0, -13.75], [-48.75, -13.85], [-48.5, -13.75], [-47.97000000000003, -13.97], [-47.75, -14.5], [-47.97000000000003, -15.03], [-48.370000000000005, -15.2], [-48.25, -15.5], [-48.47000000000003, -16.03], [-48.81999999999999, -16.18], [-48.97000000000003, -16.53], [-49.31999999999999, -16.68], [-49.35000000000002, -16.75], [-49.31999999999999, -16.82], [-48.97000000000003, -16.97], [-48.75, -17.5], [-48.97000000000003, -18.03], [-49.31999999999999, -18.18], [-49.47000000000003, -18.53], [-50.0, -18.75], [-50.52999999999997, -18.53], [-50.68000000000001, -18.18], [-51.02999999999997, -18.03], [-51.18000000000001, -17.68], [-51.52999999999997, -17.53], [-51.68000000000001, -17.18], [-51.75, -17.15], [-52.0, -17.25], [-52.52999999999997, -17.03], [-52.68000000000001, -16.68], [-53.02999999999997, -16.53]]]]}, "2024-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.02999999999997, -16.53], [-53.25, -16.0], [-53.02999999999997, -15.47], [-52.68000000000001, -15.32], [-52.52999999999997, -14.97], [-52.18000000000001, -14.82], [-52.14999999999998, -14.75], [-52.25, -14.5], [-52.14999999999998, -14.25], [-52.25, -14.0], [-52.02999999999997, -13.47], [-51.5, -13.25], [-50.97000000000003, -13.47], [-50.81999999999999, -13.82], [-50.75, -13.85], [-50.5, -13.75], [-50.25, -13.85], [-50.0, -13.75], [-49.5, -13.96], [-49.0, -13.75], [-48.75, -13.85], [-48.5, -13.75], [-47.97000000000003, -13.97], [-47.75, -14.5], [-47.97000000000003, -15.03], [-48.370000000000005, -15.2], [-48.25, -15.5], [-48.47000000000003, -16.03], [-48.81999999999999, -16.18], [-48.97000000000003, -16.53], [-49.31999999999999, -16.68], [-49.35000000000002, -16.75], [-49.31999999999999, -16.82], [-48.97000000000003, -16.97], [-48.75, -17.5], [-48.97000000000003, -18.03], [-49.31999999999999, -18.18], [-49.47000000000003, -18.53], [-50.0, -18.75], [-50.52999999999997, -18.53], [-50.68000000000001, -18.18], [-51.02999999999997, -18.03], [-51.18000000000001, -17.68], [-51.52999999999997, -17.53], [-51.68000000000001, -17.18], [-51.75, -17.15], [-52.0, -17.25], [-52.52999999999997, -17.03], [-52.68000000000001, -16.68], [-53.02999999999997, -16.53]]]]}, "2024-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.02999999999997, -16.53], [-53.25, -16.0], [-53.02999999999997, -15.47], [-52.68000000000001, -15.32], [-52.52999999999997, -14.97], [-52.18000000000001, 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-17.15], [-52.0, -17.25], [-52.52999999999997, -17.03], [-52.68000000000001, -16.68], [-53.02999999999997, -16.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.304792183454595}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.2143276935129124}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.030081819233203, 23.7522747508267, 23.916117671498114]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.152505493164085, 21.648913319905603, 22.720310465494833]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.228001885286544, -3.363854001840988, -3.0511271934112054]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.119794546945855, -4.212886018004269, -4.304792183454595]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.571424726174562, -1.7319094321755966, -1.6463140966839054]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8944527618694247, -2.099783243003737, -2.361195513397857]}}