{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:03.217756", "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-Jul-27_to_2022-Aug-02_279.0_27.0"}, "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": 2022070002914}, "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 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 02 2022"}, "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": "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": 113612.06945628891}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": ["Atlantic Ocean"]}, "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": 27.0}, "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": 279.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "279.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 276.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-79.97, 29.03], [-79.75, 28.5], [-79.96, 28.0], [-79.75, 27.5], [-79.96, 27.0], [-79.75, 26.5], [-79.97, 25.97], [-80.5, 25.75], [-81.03, 25.97], [-81.18, 26.32], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.53, 26.47], [-82.68, 26.82], [-82.75, 26.85], [-83.0, 26.75], [-83.25, 26.85], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.53, 26.97], [-84.75, 27.5], [-84.65, 27.75], [-84.75, 28.0], [-84.65, 28.25], [-84.75, 28.5], [-84.53, 29.03], [-84.12, 29.2], [-84.25, 29.5], [-84.03, 30.03], [-83.5, 30.25], [-83.25, 30.15], [-83.13, 30.2], [-83.12, 30.2], [-83.18, 30.32], [-83.53, 30.47], [-83.68, 30.82], [-84.03, 30.97], [-84.25, 31.5], [-84.03, 32.03], [-83.5, 32.25], [-83.25, 32.15], [-83.0, 32.25], [-82.75, 32.15], [-82.5, 32.25], [-82.25, 32.15], [-82.0, 32.25], [-81.75, 32.15], [-81.5, 32.25], [-80.97, 32.03], [-80.75, 31.5], [-80.85, 31.25], [-80.75, 31.0], [-80.97, 30.47], [-81.32, 30.32], [-81.35, 30.25], [-81.25, 30.0], [-81.35, 29.75], [-81.32, 29.68], [-80.97, 29.53], [-80.8, 29.12], [-80.5, 29.25], [-79.97, 29.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.02999999999997, 29.03], [-80.5, 29.25], [-79.97000000000003, 29.03], [-79.75, 28.5], [-79.97000000000003, 27.97], [-80.5, 27.75], [-81.02999999999997, 27.97], [-81.25, 28.5], [-81.02999999999997, 29.03]]]]}, "2022-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.02999999999997, 28.03], [-81.5, 28.25], [-81.25, 28.15], [-81.12, 28.2], [-81.25, 28.5], [-81.02999999999997, 29.03], [-80.5, 29.25], [-79.97000000000003, 29.03], [-79.75, 28.5], [-79.95999999999998, 28.0], [-79.75, 27.5], [-79.97000000000003, 26.97], [-80.32, 26.82], [-80.47000000000003, 26.47], [-81.0, 26.25], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.52999999999997, 26.47], [-82.75, 27.0], [-82.52999999999997, 27.53], [-82.18, 27.68], [-82.02999999999997, 28.03]]]]}, "2022-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.52999999999997, 27.97], [-84.75, 28.5], [-84.52999999999997, 29.03], [-84.0, 29.25], [-83.75, 29.15], [-83.62, 29.2], [-83.75, 29.5], [-83.52999999999997, 30.03], [-83.0, 30.25], [-82.5, 30.04], [-82.0, 30.25], [-81.47000000000003, 30.03], [-81.32, 29.68], [-80.97000000000003, 29.53], [-80.80000000000001, 29.12], [-80.5, 29.25], [-79.97000000000003, 29.03], [-79.75, 28.5], [-79.95999999999998, 28.0], [-79.75, 27.5], [-79.95999999999998, 27.0], [-79.75, 26.5], [-79.97000000000003, 25.97], [-80.5, 25.75], [-81.02999999999997, 25.97], [-81.18, 26.32], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.52999999999997, 26.47], [-82.68, 26.82], [-82.75, 26.85], [-83.0, 26.75], [-83.52999999999997, 26.97], [-83.68, 27.32], [-84.02999999999997, 27.47], [-84.18, 27.82], [-84.52999999999997, 27.97]]]]}, "2022-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.52999999999997, 27.97], [-84.75, 28.5], [-84.52999999999997, 29.03], [-84.0, 29.25], [-83.75, 29.15], [-83.62, 29.2], [-83.75, 29.5], [-83.52999999999997, 30.03], [-83.12, 30.2], [-83.18, 30.32], [-83.52999999999997, 30.47], [-83.68, 30.82], [-84.02999999999997, 30.97], [-84.25, 31.5], [-84.02999999999997, 32.03], [-83.5, 32.25], [-83.0, 32.04], [-82.5, 32.25], [-82.25, 32.15], [-82.0, 32.25], [-81.75, 32.15], [-81.5, 32.25], [-80.97000000000003, 32.03], [-80.75, 31.5], [-80.85000000000002, 31.25], [-80.75, 31.0], [-80.97000000000003, 30.47], [-81.32, 30.32], [-81.35000000000002, 30.25], [-81.25, 30.0], [-81.35000000000002, 29.75], [-81.32, 29.68], [-80.97000000000003, 29.53], [-80.80000000000001, 29.12], [-80.5, 29.25], [-79.97000000000003, 29.03], [-79.75, 28.5], [-79.95999999999998, 28.0], [-79.75, 27.5], [-79.95999999999998, 27.0], [-79.75, 26.5], [-79.97000000000003, 25.97], [-80.5, 25.75], [-81.02999999999997, 25.97], [-81.18, 26.32], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.52999999999997, 26.47], [-82.68, 26.82], [-82.75, 26.85], [-83.0, 26.75], [-83.52999999999997, 26.97], [-83.68, 27.32], [-84.02999999999997, 27.47], [-84.18, 27.82], [-84.52999999999997, 27.97]]]]}, "2022-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.75, 28.0], [-84.64999999999998, 28.25], [-84.75, 28.5], [-84.52999999999997, 29.03], [-84.12, 29.2], [-84.25, 29.5], [-84.02999999999997, 30.03], [-83.5, 30.25], [-83.25, 30.15], [-83.12, 30.2], [-83.18, 30.32], [-83.52999999999997, 30.47], [-83.68, 30.82], [-84.02999999999997, 30.97], [-84.25, 31.5], [-84.02999999999997, 32.03], [-83.5, 32.25], [-83.25, 32.15], [-83.0, 32.25], [-82.75, 32.15], [-82.5, 32.25], [-82.25, 32.15], [-82.0, 32.25], [-81.75, 32.15], [-81.5, 32.25], [-80.97000000000003, 32.03], [-80.75, 31.5], [-80.85000000000002, 31.25], [-80.75, 31.0], [-80.97000000000003, 30.47], [-81.32, 30.32], [-81.35000000000002, 30.25], [-81.25, 30.0], [-81.35000000000002, 29.75], [-81.32, 29.68], [-80.97000000000003, 29.53], [-80.80000000000001, 29.12], [-80.5, 29.25], [-79.97000000000003, 29.03], [-79.75, 28.5], [-79.95999999999998, 28.0], [-79.75, 27.5], [-79.95999999999998, 27.0], [-79.75, 26.5], [-79.97000000000003, 25.97], [-80.5, 25.75], [-81.02999999999997, 25.97], [-81.18, 26.32], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.52999999999997, 26.47], [-82.68, 26.82], [-82.75, 26.85], [-83.0, 26.75], [-83.25, 26.85], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.52999999999997, 26.97], [-84.75, 27.5], [-84.64999999999998, 27.75], [-84.75, 28.0]]]]}, "2022-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.75, 28.0], [-84.64999999999998, 28.25], [-84.75, 28.5], [-84.52999999999997, 29.03], [-84.12, 29.2], [-84.25, 29.5], [-84.02999999999997, 30.03], [-83.5, 30.25], [-83.25, 30.15], [-83.12, 30.2], [-83.18, 30.32], [-83.52999999999997, 30.47], [-83.68, 30.82], [-84.02999999999997, 30.97], [-84.25, 31.5], [-84.02999999999997, 32.03], [-83.5, 32.25], [-83.25, 32.15], [-83.0, 32.25], [-82.75, 32.15], [-82.5, 32.25], [-82.25, 32.15], [-82.0, 32.25], [-81.75, 32.15], [-81.5, 32.25], [-80.97000000000003, 32.03], [-80.75, 31.5], [-80.85000000000002, 31.25], [-80.75, 31.0], [-80.97000000000003, 30.47], [-81.32, 30.32], [-81.35000000000002, 30.25], [-81.25, 30.0], [-81.35000000000002, 29.75], [-81.32, 29.68], [-80.97000000000003, 29.53], [-80.75, 29.0], [-80.85000000000002, 28.75], [-80.82, 28.68], [-80.47000000000003, 28.53], [-80.32, 28.18], [-79.97000000000003, 28.03], [-79.75, 27.5], [-79.95999999999998, 27.0], [-79.75, 26.5], [-79.97000000000003, 25.97], [-80.5, 25.75], [-81.02999999999997, 25.97], [-81.18, 26.32], [-81.25, 26.35], [-81.5, 26.25], [-81.75, 26.35], [-82.0, 26.25], [-82.52999999999997, 26.47], [-82.68, 26.82], [-82.75, 26.85], [-83.0, 26.75], [-83.25, 26.85], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.52999999999997, 26.97], [-84.75, 27.5], [-84.64999999999998, 27.75], [-84.75, 28.0]]]]}, "2022-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.75, 28.0], [-84.64999999999998, 28.25], [-84.75, 28.5], [-84.52999999999997, 29.03], [-84.12, 29.2], [-84.25, 29.5], [-84.02999999999997, 30.03], [-83.5, 30.25], [-83.25, 30.15], [-83.12, 30.2], [-83.25, 30.5], [-83.14999999999998, 30.75], [-83.18, 30.82], [-83.52999999999997, 30.97], [-83.75, 31.5], [-83.52999999999997, 32.03], [-83.0, 32.25], [-82.75, 32.15], [-82.5, 32.25], [-82.25, 32.15], [-82.0, 32.25], [-81.75, 32.15], [-81.5, 32.25], [-80.97000000000003, 32.03], [-80.75, 31.5], [-80.85000000000002, 31.25], [-80.75, 31.0], [-80.97000000000003, 30.47], [-81.32, 30.32], [-81.35000000000002, 30.25], [-81.25, 30.0], [-81.37, 29.7], [-80.97000000000003, 29.53], [-80.75, 29.0], [-80.97000000000003, 28.47], [-81.37, 28.3], [-81.30000000000001, 28.12], [-81.0, 28.25], [-80.75, 28.15], [-80.5, 28.25], [-79.97000000000003, 28.03], [-79.75, 27.5], [-79.95999999999998, 27.0], [-79.75, 26.5], [-79.97000000000003, 25.97], [-80.5, 25.75], [-81.02999999999997, 25.97], [-81.18, 26.32], [-81.52999999999997, 26.47], [-81.75, 27.0], [-81.64999999999998, 27.25], [-81.69999999999999, 27.38], [-81.82, 27.32], [-81.97000000000003, 26.97], [-82.5, 26.75], [-82.75, 26.85], [-83.0, 26.75], [-83.25, 26.85], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.52999999999997, 26.97], [-84.75, 27.5], [-84.64999999999998, 27.75], [-84.75, 28.0]], [[-83.25, 28.65], [-83.0, 28.75], [-83.25, 28.85], [-83.37, 28.8], [-83.32, 28.68], [-83.25, 28.65]], [[-82.75, 28.65], [-82.5, 28.75], [-82.25, 28.65], [-82.12, 28.7], [-82.25, 29.0], [-82.12, 29.3], [-82.30000000000001, 29.38], [-82.47000000000003, 28.97], [-83.0, 28.75], [-82.75, 28.65]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.479464948046939}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0121224263826383}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.227041469928338, 29.314833185191844, 29.50728208440114, 29.505889579772315, 29.630784483619436, 29.581258038124133, 29.380396919503482]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.227041469928338, 30.19741125996029, 30.47938940400695, 30.491357504184464, 30.567856306670308, 30.544460132198367, 30.48644093863078]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.064068779488423, 1.6049545221893513, 1.846460316804521, 1.9888122441464462, 2.142194389884235, 2.1377137431729363, 1.9442217530764827]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.064068779488423, 1.9749776910335868, 2.514242048468475, 3.1258754982850405, 3.236073121226525, 3.253705238983912, 3.479464948046939]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5224666127474933, 1.4891908930040247, 1.7329695478893192, 1.634136670569789, 1.7410663210622102, 1.7480668083428512, 1.627710853698787]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5224666127474933, 1.7855410573626098, 2.2077171783633007, 2.0067051218794507, 2.287364870505507, 2.4344980294609333, 2.287162196599413]}}