{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:06.267982", "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-Aug-02_to_2022-Aug-05_297.5_9.0"}, "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": 2022080000172}, "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 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 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": 64093.005010043824}, "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": ["Venezuela, Bolivarian Republic of"]}, "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": ["Caribbean Sea"]}, "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": 9.0}, "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": 297.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 296.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 10.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-60.97, 6.97], [-61.32, 6.82], [-61.47, 6.47], [-62.0, 6.25], [-62.53, 6.47], [-62.75, 7.0], [-62.54, 7.5], [-62.68, 7.82], [-62.75, 7.85], [-63.0, 7.75], [-63.53, 7.97], [-63.68, 8.32], [-64.03, 8.47], [-64.25, 9.0], [-64.15, 9.25], [-64.25, 9.5], [-64.15, 9.75], [-64.25, 10.0], [-64.15, 10.25], [-64.25, 10.5], [-64.03, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47, 11.03], [-62.32, 10.68], [-61.97, 10.53], [-61.82, 10.18], [-61.47, 10.03], [-61.32, 9.68], [-60.97, 9.53], [-60.75, 9.0], [-60.85, 8.75], [-60.75, 8.5], [-60.96, 8.0], [-60.75, 7.5], [-60.97, 6.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.02999999999997, 8.03], [-61.5, 8.25], [-60.97000000000003, 8.03], [-60.75, 7.5], [-60.97000000000003, 6.97], [-61.31999999999999, 6.82], [-61.47000000000003, 6.47], [-62.0, 6.25], [-62.52999999999997, 6.47], [-62.75, 7.0], [-62.52999999999997, 7.53], [-62.18000000000001, 7.68], [-62.02999999999997, 8.03]]]]}, "2022-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 9.5], [-64.14999999999998, 9.75], [-64.25, 10.0], [-64.14999999999998, 10.25], [-64.25, 10.5], [-64.02999999999997, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47000000000003, 11.03], [-62.31999999999999, 10.68], [-61.97000000000003, 10.53], [-61.81999999999999, 10.18], [-61.47000000000003, 10.03], [-61.31999999999999, 9.68], [-60.97000000000003, 9.53], [-60.75, 9.0], [-60.85000000000002, 8.75], [-60.75, 8.5], [-60.95999999999998, 8.0], [-60.75, 7.5], [-60.97000000000003, 6.97], [-61.31999999999999, 6.82], [-61.47000000000003, 6.47], [-62.0, 6.25], [-62.52999999999997, 6.47], [-62.75, 7.0], [-62.54000000000002, 7.5], [-62.68000000000001, 7.82], [-62.75, 7.85], [-63.0, 7.75], [-63.52999999999997, 7.97], [-63.68000000000001, 8.32], [-64.02999999999997, 8.47], [-64.25, 9.0], [-64.14999999999998, 9.25], [-64.25, 9.5]]]]}, "2022-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 9.5], [-64.14999999999998, 9.75], [-64.25, 10.0], [-64.14999999999998, 10.25], [-64.25, 10.5], [-64.02999999999997, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47000000000003, 11.03], [-62.31999999999999, 10.68], [-61.97000000000003, 10.53], [-61.81999999999999, 10.18], [-61.47000000000003, 10.03], [-61.31999999999999, 9.68], [-60.97000000000003, 9.53], [-60.75, 9.0], [-60.85000000000002, 8.75], [-60.75, 8.5], [-60.95999999999998, 8.0], [-60.75, 7.5], [-60.97000000000003, 6.97], [-61.31999999999999, 6.82], [-61.47000000000003, 6.47], [-62.0, 6.25], [-62.52999999999997, 6.47], [-62.75, 7.0], [-62.54000000000002, 7.5], [-62.68000000000001, 7.82], [-62.75, 7.85], [-63.0, 7.75], [-63.52999999999997, 7.97], [-63.68000000000001, 8.32], [-64.02999999999997, 8.47], [-64.25, 9.0], [-64.14999999999998, 9.25], [-64.25, 9.5]]]]}, "2022-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.25, 9.5], [-64.14999999999998, 9.75], [-64.25, 10.0], [-64.14999999999998, 10.25], [-64.25, 10.5], [-64.02999999999997, 11.03], [-63.5, 11.25], [-63.25, 11.15], [-63.0, 11.25], [-62.47000000000003, 11.03], [-62.31999999999999, 10.68], [-61.97000000000003, 10.53], [-61.81999999999999, 10.18], [-61.47000000000003, 10.03], [-61.31999999999999, 9.68], [-60.97000000000003, 9.53], [-60.75, 9.0], [-60.85000000000002, 8.75], [-60.75, 8.5], [-60.97000000000003, 7.97], [-61.31999999999999, 7.82], [-61.47000000000003, 7.47], [-62.0, 7.25], [-62.52999999999997, 7.47], [-62.68000000000001, 7.82], [-62.75, 7.85], [-63.0, 7.75], [-63.52999999999997, 7.97], [-63.68000000000001, 8.32], [-64.02999999999997, 8.47], [-64.25, 9.0], [-64.14999999999998, 9.25], [-64.25, 9.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.1172378097516003}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.416411675251764}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.528829789072574, 24.969914794942156, 24.743220548119325, 24.89492409020312]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.515890256694263, 23.588584929863202, 23.667223894381948, 23.13136029220982]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.031911104792897, -1.2956524578618822, -1.5319936750769383, -1.4626076073452683]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.0649332706535688, -1.6787773588178538, -2.1172378097516003, -1.9732641271956481]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2874597034087798, -1.6957228629146777, -2.0169560476274393, -1.9632601572310309]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3063689615265621, -2.0625951627127654, -3.00811798434991, -2.536512519735812]}}