{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:43.130505", "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": "2025-Jun-12_to_2025-Jun-16_287.0_-16.0"}, "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": 2025060000436}, "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 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 92258.24279098967}, "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": ["Peru"]}, "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": -16.0}, "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": 287.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.5}, "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": -13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-72.25, -15.35], [-72.0, -15.25], [-71.5, -15.46], [-71.0, -15.25], [-70.75, -15.35], [-70.5, -15.25], [-69.97, -15.47], [-69.82, -15.82], [-69.47, -15.97], [-69.32, -16.32], [-68.97, -16.47], [-68.75, -17.0], [-68.97, -17.53], [-69.37, -17.7], [-69.25, -18.0], [-69.47, -18.53], [-70.0, -18.75], [-70.53, -18.53], [-70.68, -18.18], [-70.75, -18.15], [-71.0, -18.25], [-71.53, -18.03], [-71.68, -17.68], [-72.03, -17.53], [-72.18, -17.18], [-72.53, -17.03], [-72.68, -16.68], [-72.75, -16.65], [-73.0, -16.75], [-73.25, -16.65], [-73.5, -16.75], [-74.03, -16.53], [-74.18, -16.18], [-74.25, -16.15], [-74.5, -16.25], [-75.03, -16.03], [-75.25, -15.5], [-75.15, -15.25], [-75.18, -15.18], [-75.53, -15.03], [-75.68, -14.68], [-76.03, -14.53], [-76.25, -14.0], [-76.15, -13.75], [-76.18, -13.68], [-76.53, -13.53], [-76.75, -13.0], [-76.53, -12.47], [-76.0, -12.25], [-75.47, -12.47], [-75.32, -12.82], [-74.97, -12.97], [-74.8, -13.38], [-74.5, -13.25], [-74.25, -13.35], [-74.0, -13.25], [-73.47, -13.47], [-73.32, -13.82], [-72.97, -13.97], [-72.75, -14.5], [-72.85, -14.75], [-72.82, -14.82], [-72.47, -14.97], [-72.32, -15.32], [-72.25, -15.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.South-America", "South-American-Monsoon", "S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.02999999999997, -15.53], [-75.25, -15.0], [-75.02999999999997, -14.47], [-74.5, -14.25], [-73.97000000000003, -14.47], [-73.82, -14.82], [-73.47000000000003, -14.97], [-73.32, -15.32], [-73.25, -15.35], [-73.0, -15.25], [-72.75, -15.35], [-72.5, -15.25], [-72.25, -15.35], [-72.0, -15.25], [-71.47000000000003, -15.47], [-71.32, -15.82], [-70.97000000000003, -15.97], [-70.82, -16.32], [-70.47000000000003, -16.47], [-70.32, -16.82], [-70.19999999999999, -16.88], [-70.02999999999997, -16.47], [-69.5, -16.25], [-68.97000000000003, -16.47], [-68.75, -17.0], 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evolution of maximum t2m.", "value": [1.4471781412760834, -0.5008122762043854, -0.27262598673502225, -0.9472551981608035, 15.631995137532556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.820908742895816, -2.3341173260545154, -2.140643992496401, -2.0800633937227064, -1.229579702896217]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.0950509033602316, -3.174449912197531, -3.500733909886833, -2.876356132936735, -1.229579702896217]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.727237455323815, -2.140978806469797, -1.9431983918202802, -1.8349385308411998, -1.1964735321343785]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1036909540549837, -3.32823636740033, -3.3130622249867008, -2.482250626251227, -1.1964735321343785]}}