{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:37.769620", "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": "2022-Feb-02_to_2022-Feb-05_36.5_-15.5"}, "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": 2022020001398}, "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": "February 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 05 2022"}, "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": 68570.01191376855}, "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": ["Malawi", "Mozambique"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -15.5}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.5}, "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": "MultiPolygon", "coordinates": [[[[35.3, -14.37], [35.47, -13.97], [36.0, -13.75], [36.25, -13.85], [36.5, -13.75], [36.75, -13.85], [37.0, -13.75], [37.25, -13.85], [37.5, -13.75], [38.03, -13.97], [38.18, -14.32], [38.25, -14.35], [38.5, -14.25], [38.75, -14.35], [39.0, -14.25], [39.25, -14.35], [39.5, -14.25], [40.03, -14.47], [40.25, -15.0], [40.03, -15.53], [39.5, -15.75], [39.25, -15.65], [39.0, -15.75], [38.75, -15.65], [38.68, -15.68], [38.53, -16.03], [38.0, -16.25], [37.5, -16.04], [37.18, -16.18], [37.15, -16.25], [37.25, -16.5], [37.03, -17.03], [36.5, -17.25], [36.25, -17.15], [36.0, -17.25], [35.47, -17.03], [35.32, -16.68], [34.97, -16.53], [34.82, -16.18], [34.47, -16.03], [34.25, -15.5], [34.35, -15.25], [34.25, -15.0], [34.47, -14.47], [35.0, -14.25], [35.3, -14.37]]]]}}, "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": {"2022-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -15.0], [34.47, -14.47], [35.0, -14.25], [35.3, -14.37], [35.47, -13.97], [36.0, -13.75], [36.25, -13.85], [36.5, -13.75], [36.75, -13.85], [37.0, -13.75], [37.25, -13.85], [37.5, -13.75], [38.03, -13.97], [38.18, -14.32], [38.25, -14.35], [38.5, -14.25], [38.75, -14.35], [39.0, -14.25], [39.25, -14.35], [39.5, -14.25], [40.03, -14.47], [40.25, -15.0], [40.03, -15.53], [39.5, -15.75], [39.25, -15.65], [39.0, -15.75], [38.75, -15.65], [38.68, -15.68], [38.53, -16.03], [38.0, -16.25], [37.5, -16.04], [37.18, -16.18], [37.15, -16.25], [37.25, -16.5], [37.03, -17.03], [36.5, -17.25], [36.25, -17.15], [36.0, -17.25], [35.47, -17.03], [35.32, -16.68], [34.97, -16.53], [34.82, -16.18], [34.47, -16.03], [34.25, -15.5], [34.35, -15.25], [34.25, -15.0]]]]}, "2022-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -15.0], [34.47, -14.47], [35.0, -14.25], [35.3, -14.37], [35.47, -13.97], [36.0, -13.75], [36.25, -13.85], [36.5, -13.75], [36.75, -13.85], [37.0, -13.75], [37.25, -13.85], [37.5, -13.75], [38.03, -13.97], [38.18, -14.32], [38.25, -14.35], [38.5, -14.25], [38.75, -14.35], [39.0, -14.25], [39.25, -14.35], [39.5, -14.25], [40.03, -14.47], [40.25, -15.0], [40.03, -15.53], [39.5, -15.75], [39.25, -15.65], [39.0, -15.75], [38.75, -15.65], [38.68, -15.68], [38.53, -16.03], [38.0, -16.25], [37.5, -16.04], [37.18, -16.18], [37.15, -16.25], [37.25, -16.5], [37.03, -17.03], [36.5, -17.25], [36.25, -17.15], [36.0, -17.25], [35.47, -17.03], [35.32, -16.68], [34.97, -16.53], [34.82, -16.18], [34.47, -16.03], [34.25, -15.5], [34.35, -15.25], [34.25, -15.0]]]]}, "2022-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.25, -15.0], [34.47, -14.47], [35.0, -14.25], [35.3, -14.37], [35.47, -13.97], [36.0, -13.75], [36.25, -13.85], [36.5, -13.75], [36.75, -13.85], [37.0, -13.75], [37.25, -13.85], [37.5, -13.75], [38.03, -13.97], [38.18, -14.32], [38.25, -14.35], [38.5, -14.25], [38.75, -14.35], [39.0, -14.25], [39.25, -14.35], [39.5, -14.25], [40.03, -14.47], [40.25, -15.0], [40.03, -15.53], [39.5, -15.75], [39.25, -15.65], [39.0, -15.75], [38.75, -15.65], [38.68, -15.68], [38.53, -16.03], [38.0, -16.25], [37.5, -16.04], [37.18, -16.18], [37.15, -16.25], [37.25, -16.5], [37.03, -17.03], [36.5, -17.25], [36.25, -17.15], [36.0, -17.25], [35.47, -17.03], [35.32, -16.68], [34.97, -16.53], [34.82, -16.18], [34.47, -16.03], [34.25, -15.5], [34.35, -15.25], [34.25, -15.0]]]]}, "2022-02-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.97, -14.47], [39.5, -14.25], [40.03, -14.47], [40.25, -15.0], [40.03, -15.53], [39.5, -15.75], [38.97, -15.53], [38.75, -15.0], [38.97, -14.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4141886795570713}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.681141659564312}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.549204624997913, 26.262566204540747, 25.70398065799327, 26.71421801709829]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.802208536537194, 27.586523136837855, 27.52179146654322, 26.71421801709829]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.414314668097288, 2.111989112825476, 1.543834503893814, 1.0667356187205428]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8550340830160508, 2.4141886795570713, 2.230492244176787, 1.0667356187205428]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.581583833510431, 2.3642618263957633, 1.6508253899749687, 1.2943281294934437]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0279903065360974, 2.878059084389812, 1.9957830661162588, 1.2943281294934437]}}