{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:13.742759", "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-Jun-14_to_2024-Jun-19_320.0_-4.5"}, "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": 2024060000435}, "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 14 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 83173.73639915275}, "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": -4.5}, "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": 320.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "320.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 317.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 321.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-42.65, -4.75], [-42.75, -4.5], [-42.53, -3.97], [-42.18, -3.82], [-42.03, -3.47], [-41.5, -3.25], [-41.25, -3.35], [-41.18, -3.32], [-41.03, -2.97], [-40.5, -2.75], [-39.97, -2.97], [-39.82, -3.32], [-39.75, -3.35], [-39.5, -3.25], [-39.25, -3.35], [-39.0, -3.25], [-38.47, -3.47], [-38.25, -4.0], [-38.35, -4.25], [-38.25, -4.5], [-38.35, -4.75], [-38.25, -5.0], [-38.47, -5.53], [-38.82, -5.68], [-38.97, -6.03], [-39.5, -6.25], [-39.75, -6.15], [-40.0, -6.25], [-40.5, -6.04], [-41.0, -6.25], [-41.5, -6.04], [-42.0, -6.25], [-42.25, -6.15], [-42.5, -6.25], [-42.75, -6.15], [-43.0, -6.25], [-43.53, -6.03], [-43.75, -5.5], [-43.53, -4.97], [-43.0, -4.75], [-42.75, -4.85], [-42.68, -4.82], [-42.65, -4.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.0, -6.25], [-43.52999999999997, -6.03], [-43.75, -5.5], 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[-41.97000000000003, -6.03], [-42.5, -6.25]]], [[[-40.0, -5.25], [-40.52999999999997, -5.03], [-40.75, -4.5], [-40.52999999999997, -3.97], [-40.0, -3.75], [-39.47000000000003, -3.97], [-39.25, -4.5], [-39.47000000000003, -5.03], [-40.0, -5.25]]]]}, "2024-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.52999999999997, -3.97], [-40.0, -3.75], [-39.47000000000003, -3.97], [-39.25, -4.5], [-39.47000000000003, -5.03], [-40.0, -5.25], [-40.52999999999997, -5.03], [-40.75, -4.5], [-40.52999999999997, -3.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.56672193036934}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.672578968712}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.59651541764515, 24.702120005728034, 24.853664349252313, 24.924591740760263, 26.070971615440783, 24.677957493093913]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.105683113435703, 22.683841838810224, 22.92001062282327, 22.876074133087684, 24.78540291993346, 24.677957493093913]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.815537332318353, -1.7489061226950353, -1.6137633845643495, -1.5353081027906745, -1.2477432693931974, -1.209521214691847]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3054457631468495, -2.56672193036934, -2.1640659426795423, -2.0310411379677475, -1.385364686597427, -1.209521214691847]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.840287970524324, -1.797476787966502, -1.7023668521635864, -1.6063948869912976, -1.2745145216293703, -1.291966917824406]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.5162996434946776, -2.185671626378106, -2.4503629067827704, -2.2300632526051083, -1.363600554814256, -1.291966917824406]}}