{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:27:12.011283", "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-Aug-04_to_2021-Aug-06_27.0_8.5"}, "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": 2021080001743}, "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": "August 04 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 2021"}, "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": "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": 89018.40743656649}, "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": ["Central African Republic", "Congo, The Democratic Republic of the", "South Sudan"]}, "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": 8.5}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[24.47, 8.53], [25.0, 8.75], [25.25, 8.646], [25.5, 8.75], [25.75, 8.646], [25.823, 8.677], [25.97, 9.03], [26.5, 9.25], [26.75, 9.146], [27.0, 9.25], [27.25, 9.146], [27.5, 9.25], [28.03, 9.03], [28.177, 8.677], [28.53, 8.53], [28.75, 8.0], [28.53, 7.47], [28.0, 7.25], [27.5, 7.457], [27.125, 7.302], [27.25, 7.0], [27.146, 6.75], [27.25, 6.5], [27.146, 6.25], [27.177, 6.177], [27.53, 6.03], [27.677, 5.677], [28.03, 5.53], [28.25, 5.0], [28.146, 4.75], [28.25, 4.5], [28.03, 3.97], [27.5, 3.75], [27.25, 3.854], [27.177, 3.823], [27.03, 3.47], [26.5, 3.25], [26.25, 3.354], [26.0, 3.25], [25.47, 3.47], [25.25, 4.0], [25.47, 4.53], [25.823, 4.677], [25.957, 5.0], [25.75, 5.5], [25.854, 5.75], [25.823, 5.823], [25.75, 5.854], [25.5, 5.75], [25.25, 5.854], [25.0, 5.75], [24.47, 5.97], [24.25, 6.5], [24.457, 7.0], [24.25, 7.5], [24.354, 7.75], [24.25, 8.0], [24.47, 8.53]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-04T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[24.353553390593273, 7.75], [24.25, 8.0], [24.46966991411009, 8.530330085889911], [25.0, 8.75], [25.25, 8.646446609406727], [25.5, 8.75], [25.75, 8.646446609406727], [25.82322330470336, 8.676776695296637], [25.96966991411009, 9.030330085889911], [26.5, 9.25], [26.75, 9.146446609406727], [27.0, 9.25], [27.25, 9.146446609406727], [27.5, 9.25], [28.03033008588991, 9.030330085889911], [28.17677669529664, 8.676776695296637], [28.53033008588991, 8.530330085889911], [28.75, 8.0], [28.53033008588991, 7.4696699141100895], [28.0, 7.25], [27.5, 7.457106781186547], [27.125, 7.301776695296637], [27.25, 7.0], [27.146446609406727, 6.75], [27.25, 6.5], [27.146446609406727, 6.25], [27.17677669529664, 6.1767766952966365], [27.53033008588991, 6.0303300858899105], [27.67677669529664, 5.6767766952966365], [28.03033008588991, 5.5303300858899105], [28.25, 5.0], [28.146446609406727, 4.75], [28.25, 4.5], [28.03033008588991, 3.9696699141100895], [27.5, 3.75], [27.25, 3.8535533905932735], [27.17677669529664, 3.823223304703363], [27.03033008588991, 3.4696699141100895], [26.5, 3.25], [26.25, 3.3535533905932735], [26.0, 3.25], [25.46966991411009, 3.4696699141100895], [25.25, 4.0], [25.46966991411009, 4.5303300858899105], [25.82322330470336, 4.6767766952966365], [25.957106781186546, 5.0], [25.75, 5.5], [25.853553390593273, 5.75], [25.82322330470336, 5.8232233047033635], [25.75, 5.853553390593274], [25.5, 5.75], [25.25, 5.853553390593274], [25.0, 5.75], [24.46966991411009, 5.9696699141100895], [24.25, 6.5], [24.457106781186546, 7.0], [24.25, 7.5], [24.353553390593273, 7.75]]]}, "2021-08-05T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[24.353553390593273, 7.75], [24.25, 8.0], [24.46966991411009, 8.530330085889911], [25.0, 8.75], [25.25, 8.646446609406727], [25.5, 8.75], [25.75, 8.646446609406727], [25.82322330470336, 8.676776695296637], [25.96966991411009, 9.030330085889911], [26.5, 9.25], [26.75, 9.146446609406727], [27.0, 9.25], [27.25, 9.146446609406727], [27.5, 9.25], [28.03033008588991, 9.030330085889911], [28.17677669529664, 8.676776695296637], [28.53033008588991, 8.530330085889911], [28.75, 8.0], [28.53033008588991, 7.4696699141100895], [28.0, 7.25], [27.5, 7.457106781186547], [27.125, 7.301776695296637], [27.25, 7.0], [27.146446609406727, 6.75], [27.25, 6.5], [27.146446609406727, 6.25], [27.17677669529664, 6.1767766952966365], [27.53033008588991, 6.0303300858899105], [27.67677669529664, 5.6767766952966365], [28.03033008588991, 5.5303300858899105], [28.25, 5.0], [28.146446609406727, 4.75], [28.25, 4.5], [28.03033008588991, 3.9696699141100895], [27.5, 3.75], [27.25, 3.8535533905932735], [27.17677669529664, 3.823223304703363], [27.03033008588991, 3.4696699141100895], [26.5, 3.25], [26.25, 3.3535533905932735], [26.0, 3.25], [25.46966991411009, 3.4696699141100895], [25.25, 4.0], [25.46966991411009, 4.5303300858899105], [25.82322330470336, 4.6767766952966365], [25.957106781186546, 5.0], [25.75, 5.5], [25.853553390593273, 5.75], [25.82322330470336, 5.8232233047033635], [25.75, 5.853553390593274], [25.5, 5.75], [25.25, 5.853553390593274], [25.0, 5.75], [24.46966991411009, 5.9696699141100895], [24.25, 6.5], [24.457106781186546, 7.0], [24.25, 7.5], [24.353553390593273, 7.75]]]}, "2021-08-06T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[24.353553390593273, 7.75], [24.25, 8.0], [24.46966991411009, 8.530330085889911], [25.0, 8.75], [25.25, 8.646446609406727], [25.5, 8.75], [25.75, 8.646446609406727], [25.82322330470336, 8.676776695296637], [25.96966991411009, 9.030330085889911], [26.5, 9.25], [26.75, 9.146446609406727], [27.0, 9.25], [27.25, 9.146446609406727], [27.5, 9.25], [28.03033008588991, 9.030330085889911], [28.17677669529664, 8.676776695296637], [28.53033008588991, 8.530330085889911], [28.75, 8.0], [28.53033008588991, 7.4696699141100895], [28.0, 7.25], [27.5, 7.457106781186547], [27.125, 7.301776695296637], [27.25, 7.0], [27.146446609406727, 6.75], [27.25, 6.5], [27.146446609406727, 6.25], [27.17677669529664, 6.1767766952966365], [27.53033008588991, 6.0303300858899105], [27.67677669529664, 5.6767766952966365], [28.03033008588991, 5.5303300858899105], [28.25, 5.0], [28.146446609406727, 4.75], [28.25, 4.5], [28.03033008588991, 3.9696699141100895], [27.5, 3.75], [27.25, 3.8535533905932735], [27.17677669529664, 3.823223304703363], [27.03033008588991, 3.4696699141100895], [26.5, 3.25], [26.25, 3.3535533905932735], [26.0, 3.25], [25.46966991411009, 3.4696699141100895], [25.25, 4.0], [25.46966991411009, 4.5303300858899105], [25.82322330470336, 4.6767766952966365], [25.957106781186546, 5.0], [25.75, 5.5], [25.853553390593273, 5.75], [25.82322330470336, 5.8232233047033635], [25.75, 5.853553390593274], [25.5, 5.75], [25.25, 5.853553390593274], [25.0, 5.75], [24.46966991411009, 5.9696699141100895], [24.25, 6.5], [24.457106781186546, 7.0], [24.25, 7.5], [24.353553390593273, 7.75]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9583208118700668}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3761464727355845}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.25824421683103, 25.769254972850945, 25.283709236744812]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.807574539018105, 27.367498767910888, 27.39629898542796]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1774397602874647, 1.707777200671742, 1.243222457247547]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.554140764772228, 1.9583208118700668, 1.8127175463217782]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.41790675233253, 2.0889297555082433, 1.579961899478172]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7912109969887184, 2.508621718582107, 2.1014822310316443]}}