{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:32.024201", "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": "2023-Apr-28_to_2023-May-04_32.5_-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": 2023040000969}, "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": "April 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 04 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 89615.72102134213}, "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": ["Kenya", "Tanzania, United Republic of", "Uganda"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "Africa"]}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[34.15, -1.75], [34.25, -2.0], [34.15, -2.25], [34.25, -2.5], [34.03, -3.03], [33.68, -3.18], [33.53, -3.53], [33.0, -3.75], 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"description": "The daily evolution of mean t2m.", "value": [22.08925999845053, 21.388556401955782, 21.050564807446335, 20.773595174928744, 21.82672984690913, 22.015711205720095, 21.854424099999733]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.066014987707547, 17.758185447222615, 17.75678447908905, 17.201844748596784, 21.570033911389203, 21.903168822642385, 21.832790427622456]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9812862223621153, -1.2219863017796901, -1.7118788832591325, -1.9883677035643437, -1.4323491564768063, -1.3267594493423758, -1.5200946349977187]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.111580112505294, -1.6730123538724229, -2.2958934523878725, -3.0924147538831903, -1.6779256898774406, 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