{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:26:44.547707", "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": "2021-Jul-20_to_2021-Jul-23_40.0_-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": 2021070002600}, "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": "July 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 23 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 50508.615969146544}, "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": ["Mozambique"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -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": 40.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[41.0, -17.75], [40.75, -17.646], [40.5, -17.75], [40.25, -17.646], [40.0, -17.75], [39.47, -17.53], [39.25, -17.0], [39.354, -16.75], [39.25, -16.5], [39.354, -16.25], [39.25, -16.0], [39.47, -15.47], [40.0, -15.25], [40.25, -15.354], [40.323, -15.323], [40.354, -15.25], [40.25, -15.0], [40.354, -14.75], [40.25, -14.5], [40.47, -13.97], [41.0, -13.75], [41.53, -13.97], [41.677, -14.323], [42.03, -14.47], [42.177, -14.823], [42.53, -14.97], [42.75, -15.5], [42.53, -16.03], [42.177, -16.177], [42.146, -16.25], [42.25, -16.5], [42.03, -17.03], [41.677, -17.177], [41.53, -17.53], [41.0, -17.75]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-07-20T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[40.25, -17.0], [40.46966991411009, -16.46966991411009], [41.0, -16.25], [41.53033008588991, -16.46966991411009], [41.75, -17.0], [41.53033008588991, -17.53033008588991], [41.0, -17.75], [40.46966991411009, -17.53033008588991], [40.25, -17.0]]]}, "2021-07-21T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[39.35355339059328, -16.75], [39.25, -16.5], [39.35355339059328, -16.25], [39.25, -16.0], [39.46966991411009, -15.469669914110089], [40.0, -15.25], [40.25, -15.353553390593275], [40.32322330470336, -15.323223304703363], [40.35355339059328, -15.25], [40.25, -15.0], [40.35355339059328, -14.75], [40.25, -14.5], [40.46966991411009, -13.969669914110089], [41.0, -13.75], [41.53033008588991, -13.969669914110089], [41.67677669529664, -14.323223304703363], [42.03033008588991, -14.469669914110089], [42.17677669529664, -14.823223304703363], [42.53033008588991, -14.969669914110089], [42.75, -15.5], [42.53033008588991, -16.03033008588991], [42.17677669529664, -16.17677669529664], [42.14644660940672, -16.25], [42.25, -16.5], [42.03033008588991, -17.03033008588991], [41.67677669529664, -17.17677669529664], [41.53033008588991, -17.53033008588991], [41.0, -17.75], [40.75, -17.646446609406727], [40.5, -17.75], [40.25, -17.646446609406727], [40.0, -17.75], [39.46966991411009, -17.53033008588991], [39.25, -17.0], [39.35355339059328, -16.75]]]}, "2021-07-22T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[39.35355339059328, -16.75], [39.25, -16.5], [39.35355339059328, -16.25], [39.25, -16.0], [39.46966991411009, -15.469669914110089], [40.0, -15.25], [40.25, -15.353553390593275], [40.32322330470336, -15.323223304703363], [40.35355339059328, -15.25], [40.25, -15.0], [40.35355339059328, -14.75], [40.25, -14.5], [40.46966991411009, -13.969669914110089], [41.0, -13.75], [41.53033008588991, -13.969669914110089], [41.67677669529664, -14.323223304703363], [42.03033008588991, -14.469669914110089], [42.17677669529664, -14.823223304703363], [42.53033008588991, -14.969669914110089], [42.75, -15.5], [42.53033008588991, -16.03033008588991], [42.17677669529664, -16.17677669529664], [42.14644660940672, -16.25], [42.25, -16.5], [42.03033008588991, 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t2m.", "value": [24.699465218176556, 25.15456561485456, 24.954541977119902, 25.023946206508242]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6817425054521777, 0.9233793313027163, 0.8572418048707658, 0.7979502876646988]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.6817425054521777, 1.554602362336425, 1.7195247476575446, 1.1742046615922277]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.160867708471257, 1.6019489419786832, 1.4862035406379746, 1.4048589759003314]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.160867708471257, 2.0301271641839804, 2.2460723369501925, 1.5735054553862997]}}