{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:30.457617", "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": "2022-Jul-04_to_2022-Jul-07_311.5_-11.0"}, "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": 2022070000279}, "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 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 07 2022"}, "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": 142213.83525373644}, "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": -11.0}, "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": 311.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "311.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 314.0}, "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": -10.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-49.25, -9.35], [-49.0, -9.25], [-48.47, -9.47], [-48.32, -9.82], [-48.25, -9.85], [-48.0, -9.75], [-47.47, -9.97], [-47.32, -10.32], [-47.25, -10.35], [-47.0, -10.25], [-46.47, -10.47], [-46.32, -10.82], [-45.97, -10.97], [-45.82, -11.32], [-45.47, -11.47], [-45.25, -12.0], [-45.47, -12.53], [-45.82, -12.68], [-45.97, -13.03], [-46.5, -13.25], [-47.0, -13.04], [-47.5, -13.25], [-48.0, -13.04], [-48.32, -13.18], [-48.47, -13.53], [-48.82, -13.68], [-48.97, -14.03], [-49.5, -14.25], [-49.75, -14.15], [-50.0, -14.25], [-50.25, -14.15], [-50.5, -14.25], [-51.03, -14.03], [-51.18, -13.68], [-51.53, -13.53], [-51.75, -13.0], [-51.53, -12.47], [-51.18, -12.32], [-51.15, -12.25], [-51.25, -12.0], [-51.15, -11.75], [-51.25, -11.5], [-51.04, -11.0], [-51.25, -10.5], [-51.03, -9.97], [-50.68, -9.82], [-50.53, -9.47], [-50.0, -9.25], [-49.75, -9.35], [-49.5, -9.25], [-49.25, -9.35]]]]}}, "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": {"2022-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.14999999999998, -12.25], [-51.25, -12.0], [-51.14999999999998, -11.75], [-51.25, -11.5], [-51.04000000000002, -11.0], [-51.25, -10.5], [-51.02999999999997, -9.97], [-50.68000000000001, -9.82], [-50.52999999999997, -9.47], [-50.0, -9.25], [-49.75, -9.35], [-49.5, -9.25], [-49.25, -9.35], [-49.0, -9.25], [-48.47000000000003, -9.47], [-48.31999999999999, -9.82], [-48.25, -9.85], [-48.0, -9.75], [-47.47000000000003, -9.97], [-47.31999999999999, -10.32], [-47.25, -10.35], [-47.0, -10.25], [-46.47000000000003, -10.47], [-46.31999999999999, -10.82], [-45.97000000000003, -10.97], [-45.81999999999999, -11.32], [-45.47000000000003, -11.47], [-45.25, -12.0], [-45.47000000000003, -12.53], [-45.81999999999999, -12.68], [-45.97000000000003, -13.03], [-46.5, -13.25], [-47.0, -13.04], [-47.5, -13.25], [-48.0, -13.04], [-48.31999999999999, -13.18], 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mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5965744282150032, -2.100197162738165, -1.2998012583984866, -1.4485072551027087]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.05471903259496, -2.5028633777930054, -1.767214772646014, -1.782676402719062]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8298783046383422, -2.436368221820843, -1.5052545645177182, -1.6091855928263368]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.5365144743384875, -2.9434954839729617, -2.0520064234326343, -1.9258520823898353]}}