{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:47.647202", "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-Jun-04_to_2022-Jun-06_300.0_-2.0"}, "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": 2022060000270}, "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": "June 04 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2022"}, "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": 67911.93825196377}, "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": -2.0}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -3.5], [-62.15, -3.25], [-62.25, -3.0], [-62.15, -2.75], [-62.25, -2.5], [-62.03, -1.97], [-61.68, -1.82], [-61.65, -1.75], [-61.75, -1.5], [-61.53, -0.97], [-61.18, -0.82], [-61.03, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.0, -0.25], [-59.47, -0.47], [-59.25, -1.0], [-59.35, -1.25], [-59.25, -1.5], [-59.35, -1.75], [-59.25, -2.0], [-59.47, -2.53], [-59.82, -2.68], [-59.87, -2.8], [-59.47, -2.97], [-59.25, -3.5], [-59.47, -4.03], [-59.82, -4.18], [-59.97, -4.53], [-60.32, -4.68], [-60.47, -5.03], [-61.0, -5.25], [-61.25, -5.15], [-61.5, -5.25], [-62.03, -5.03], [-62.25, -4.5], [-62.15, -4.25], [-62.25, -4.0], [-62.15, -3.75], [-62.25, -3.5]]]]}}, "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": {"2022-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -4.0], [-62.14999999999998, -3.75], [-62.25, -3.5], [-62.14999999999998, -3.25], [-62.25, -3.0], [-62.14999999999998, -2.75], [-62.25, -2.5], [-62.02999999999997, -1.97], [-61.68000000000001, -1.82], [-61.64999999999998, -1.75], [-61.75, -1.5], [-61.52999999999997, -0.97], [-61.18000000000001, -0.82], [-61.02999999999997, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.0, -0.25], [-59.47000000000003, -0.47], [-59.25, -1.0], [-59.35000000000002, -1.25], [-59.25, -1.5], [-59.35000000000002, -1.75], [-59.25, -2.0], [-59.47000000000003, -2.53], [-59.81999999999999, -2.68], [-59.870000000000005, -2.8], [-59.47000000000003, -2.97], [-59.25, -3.5], [-59.47000000000003, -4.03], [-59.81999999999999, -4.18], [-59.97000000000003, -4.53], [-60.31999999999999, -4.68], [-60.47000000000003, -5.03], [-61.0, -5.25], [-61.25, -5.15], [-61.5, -5.25], [-62.02999999999997, -5.03], [-62.25, -4.5], [-62.14999999999998, -4.25], [-62.25, -4.0]]]]}, "2022-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -4.0], [-62.14999999999998, -3.75], [-62.25, -3.5], [-62.14999999999998, -3.25], [-62.25, -3.0], [-62.14999999999998, -2.75], [-62.25, -2.5], [-62.02999999999997, -1.97], [-61.68000000000001, -1.82], [-61.64999999999998, -1.75], [-61.75, -1.5], [-61.52999999999997, -0.97], [-61.18000000000001, -0.82], [-61.02999999999997, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.0, -0.25], [-59.47000000000003, -0.47], [-59.25, -1.0], [-59.35000000000002, -1.25], [-59.25, -1.5], [-59.35000000000002, -1.75], [-59.25, -2.0], [-59.47000000000003, -2.53], [-59.81999999999999, -2.68], [-59.870000000000005, -2.8], [-59.47000000000003, -2.97], [-59.25, -3.5], [-59.47000000000003, -4.03], [-59.81999999999999, -4.18], [-59.97000000000003, -4.53], [-60.31999999999999, -4.68], [-60.47000000000003, -5.03], [-61.0, -5.25], [-61.25, -5.15], [-61.5, -5.25], [-62.02999999999997, -5.03], [-62.25, -4.5], [-62.14999999999998, -4.25], [-62.25, -4.0]]]]}, "2022-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.25, -4.0], [-62.14999999999998, -3.75], [-62.25, -3.5], [-62.14999999999998, -3.25], [-62.25, -3.0], [-62.14999999999998, -2.75], [-62.25, -2.5], [-62.02999999999997, -1.97], [-61.68000000000001, -1.82], [-61.64999999999998, -1.75], [-61.75, -1.5], [-61.52999999999997, -0.97], [-61.18000000000001, -0.82], [-61.02999999999997, -0.47], [-60.5, -0.25], [-60.25, -0.35], [-60.0, -0.25], [-59.47000000000003, -0.47], [-59.25, -1.0], [-59.35000000000002, -1.25], [-59.25, -1.5], [-59.35000000000002, -1.75], [-59.25, -2.0], [-59.47000000000003, -2.53], [-59.81999999999999, -2.68], [-59.870000000000005, -2.8], [-59.47000000000003, -2.97], [-59.25, -3.5], [-59.47000000000003, -4.03], [-59.81999999999999, -4.18], [-59.97000000000003, -4.53], [-60.31999999999999, -4.68], [-60.47000000000003, -5.03], [-61.0, -5.25], [-61.25, -5.15], [-61.5, -5.25], [-62.02999999999997, -5.03], [-62.25, -4.5], [-62.14999999999998, -4.25], [-62.25, -4.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.2579082141547815}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7040165463867787}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.409992829002192, 24.006179629712108, 24.222737494673765]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.770957935787294, 23.374006699074414, 23.44250575289385]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5187023740532377, -1.9100241466474406, -1.683323118459658]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8073281101571297, -2.2579082141547815, -2.0786986629365174]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6138598122695533, -1.9891723323878592, -1.7469953117904575]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8698164654738425, -2.38779519605483, -2.2943409486426987]}}