{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:46.088474", "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": "2026-May-24_to_2026-May-28_248.0_43.0"}, "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": 2026050002276}, "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": "May 24 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 28 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 71214.79747223013}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 43.0}, "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": 248.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "248.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 244.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 248.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 41.5], [-115.65, 41.75], [-115.75, 42.0], [-115.53, 42.53], [-115.18, 42.68], [-115.15, 42.75], [-115.18, 42.82], [-115.53, 42.97], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.47, 44.03], [-113.32, 43.68], [-113.25, 43.65], [-113.0, 43.75], [-112.75, 43.65], [-112.5, 43.75], [-112.25, 43.65], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-112.0, 42.25], [-112.25, 42.35], [-112.32, 42.32], [-112.35, 42.25], [-112.25, 42.0], [-112.47, 41.47], [-113.0, 41.25], [-113.25, 41.35], [-113.32, 41.32], [-113.35, 41.25], [-113.32, 41.18], [-112.97, 41.03], [-112.75, 40.5], [-112.85, 40.25], [-112.75, 40.0], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.53, 39.47], [-114.68, 39.82], [-114.75, 39.85], [-115.0, 39.75], [-115.25, 39.85], [-115.5, 39.75], [-116.03, 39.97], [-116.25, 40.5], [-116.03, 41.03], [-115.68, 41.18], [-115.65, 41.25], [-115.75, 41.5]]]]}, "2026-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 41.5], [-115.65, 41.75], [-115.75, 42.0], [-115.53, 42.53], [-115.18, 42.68], [-115.15, 42.75], [-115.18, 42.82], [-115.53, 42.97], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.47, 44.03], [-113.32, 43.68], [-113.25, 43.65], [-113.0, 43.75], [-112.75, 43.65], [-112.5, 43.75], [-112.25, 43.65], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-112.0, 42.25], [-112.25, 42.35], [-112.32, 42.32], [-112.35, 42.25], [-112.25, 42.0], [-112.47, 41.47], [-113.0, 41.25], [-113.25, 41.35], [-113.32, 41.32], [-113.35, 41.25], [-113.32, 41.18], [-112.97, 41.03], [-112.75, 40.5], [-112.85, 40.25], [-112.75, 40.0], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.53, 39.47], [-114.68, 39.82], [-114.75, 39.85], [-115.0, 39.75], [-115.25, 39.85], [-115.5, 39.75], [-116.03, 39.97], [-116.25, 40.5], [-116.03, 41.03], [-115.68, 41.18], [-115.65, 41.25], [-115.75, 41.5]]]]}, "2026-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.75, 41.5], [-115.65, 41.75], [-115.75, 42.0], [-115.53, 42.53], [-115.18, 42.68], [-115.15, 42.75], [-115.18, 42.82], [-115.53, 42.97], [-115.68, 43.32], [-116.03, 43.47], [-116.25, 44.0], [-116.03, 44.53], [-115.5, 44.75], [-114.97, 44.53], [-114.82, 44.18], [-114.75, 44.15], [-114.5, 44.25], [-114.25, 44.15], [-114.0, 44.25], [-113.47, 44.03], [-113.32, 43.68], [-113.25, 43.65], [-113.0, 43.75], [-112.75, 43.65], [-112.5, 43.75], [-112.25, 43.65], [-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-112.0, 42.25], [-112.25, 42.35], [-112.32, 42.32], [-112.35, 42.25], [-112.25, 42.0], [-112.47, 41.47], [-113.0, 41.25], [-113.25, 41.35], [-113.32, 41.32], [-113.35, 41.25], [-113.32, 41.18], [-112.97, 41.03], [-112.75, 40.5], [-112.85, 40.25], [-112.75, 40.0], [-112.97, 39.47], [-113.5, 39.25], [-113.75, 39.35], [-114.0, 39.25], [-114.53, 39.47], [-114.68, 39.82], [-114.75, 39.85], [-115.0, 39.75], [-115.25, 39.85], [-115.5, 39.75], [-116.03, 39.97], [-116.25, 40.5], [-116.03, 41.03], [-115.68, 41.18], [-115.65, 41.25], [-115.75, 41.5]]]]}, "2026-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-112.0, 42.25], [-112.53, 42.47], [-112.75, 43.0], [-112.53, 43.53], [-112.0, 43.75]]]]}, "2026-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-112.0, 43.75], [-111.47, 43.53], [-111.25, 43.0], [-111.47, 42.47], [-112.0, 42.25], [-112.53, 42.47], [-112.75, 43.0], [-112.53, 43.53], [-112.0, 43.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.151268477636052}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.8533969992037544}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.78736541912116, 20.73910724270729, 20.61125241351391, 17.592715199788415, 19.05113881429037]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.845098114013695, 24.60701141357424, 25.412185923258505, 17.592715199788415, 19.05113881429037]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.148831900928857, 6.887837262345398, 6.583209041817983, 5.28646644754491, 6.570024118952233]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.151268477636052, 8.019697998071877, 7.512755989454263, 5.28646644754491, 6.570024118952233]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6084092827489942, 1.5864682634825722, 1.5494295179404471, 1.392370661887913, 1.7220247571429372]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.794415411798757, 1.8604275555891805, 1.776397443315662, 1.392370661887913, 1.7220247571429372]}}