{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:54:45.769694", "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-Mar-09_to_2025-Mar-11_296.5_-16.5"}, "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": 2025030000245}, "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": "March 09 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 2025"}, "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": 59383.530375504095}, "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": ["Bolivia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": -16.5}, "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": 296.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 297.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -16.0], [-65.03, -15.47], [-64.68, -15.32], [-64.53, -14.97], [-64.18, -14.82], [-64.03, -14.47], [-63.5, -14.25], [-63.25, -14.35], [-63.0, -14.25], [-62.75, -14.35], [-62.5, -14.25], [-61.97, -14.47], [-61.75, -15.0], [-61.85, -15.25], [-61.75, -15.5], [-61.85, -15.75], [-61.75, -16.0], [-61.85, -16.25], [-61.75, -16.5], [-61.85, -16.75], [-61.75, -17.0], [-61.97, -17.53], [-62.32, -17.68], [-62.47, -18.03], [-62.82, -18.18], [-62.97, -18.53], [-63.5, -18.75], [-64.03, -18.53], [-64.25, -18.0], [-64.04, -17.5], [-64.18, -17.18], [-64.53, -17.03], [-64.68, -16.68], [-65.03, -16.53], [-65.25, -16.0]]]]}, "2025-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -16.0], [-65.03, -15.47], [-64.68, -15.32], [-64.53, -14.97], [-64.18, -14.82], [-64.03, -14.47], [-63.5, -14.25], [-63.25, -14.35], [-63.0, -14.25], [-62.75, -14.35], [-62.5, -14.25], [-61.97, -14.47], [-61.75, -15.0], [-61.85, -15.25], [-61.75, -15.5], [-61.85, -15.75], [-61.75, -16.0], [-61.85, -16.25], [-61.75, -16.5], [-61.85, -16.75], [-61.75, -17.0], [-61.97, -17.53], [-62.32, -17.68], [-62.47, -18.03], [-62.82, -18.18], [-62.97, -18.53], [-63.5, -18.75], [-64.03, -18.53], [-64.25, -18.0], [-64.04, -17.5], [-64.18, -17.18], [-64.53, -17.03], [-64.68, -16.68], [-65.03, -16.53], [-65.25, -16.0]]]]}, "2025-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.25, -16.0], [-65.03, -15.47], [-64.68, -15.32], [-64.53, -14.97], [-64.18, -14.82], [-64.03, -14.47], [-63.5, -14.25], [-63.25, -14.35], [-63.0, -14.25], [-62.75, -14.35], [-62.5, -14.25], [-61.97, -14.47], [-61.75, -15.0], [-61.85, -15.25], [-61.75, -15.5], [-61.85, -15.75], [-61.75, -16.0], [-61.85, -16.25], [-61.75, -16.5], [-61.85, -16.75], [-61.75, -17.0], [-61.97, -17.53], [-62.32, -17.68], [-62.47, -18.03], [-62.82, -18.18], [-62.97, -18.53], [-63.5, -18.75], [-64.03, -18.53], [-64.25, -18.0], [-64.04, -17.5], [-64.18, -17.18], [-64.53, -17.03], [-64.68, -16.68], [-65.03, -16.53], [-65.25, -16.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.03699686888001}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.1544632822158625}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.663570658365927, 23.453322601318405, 23.501156870524085]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.89796600341799, 20.912689463297568, 20.77859013875326]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.061987983183326, -2.241716599436555, -2.1596852640277064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.322155060737373, -2.828818187876209, -3.03699686888001]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5530542703056907, -1.6730318114225546, -1.6179713153250082]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8394929403315652, -1.9515540576760162, -2.0249923257327773]}}