{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:03.173008", "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": "2012-Jul-16_to_2012-Jul-19_285.0_38.0"}, "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": 2012070002459}, "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 16 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 19 2012"}, "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": 56053.154154590484}, "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": ["E.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": ["North 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": 38.0}, "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": 285.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 283.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-07-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.53, 36.47], [-73.75, 37.0], [-73.53, 37.53], [-73.0, 37.75], [-72.47, 37.53], [-72.25, 37.0], [-72.47, 36.47], [-73.0, 36.25], [-73.53, 36.47]]], [[[-75.15, 38.75], [-75.25, 39.0], [-75.03, 39.53], [-74.5, 39.75], [-73.97, 39.53], [-73.75, 39.0], [-73.85, 38.75], [-73.75, 38.5], [-73.97, 37.97], [-74.32, 37.82], [-74.47, 37.47], [-74.82, 37.32], [-74.97, 36.97], [-75.5, 36.75], [-76.03, 36.97], [-76.25, 37.5], [-76.03, 38.03], [-75.68, 38.18], [-75.53, 38.53], [-75.18, 38.68], [-75.15, 38.75]]]]}, "2012-07-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.65, 37.75], [-76.75, 38.0], [-76.53, 38.53], [-76.0, 38.75], [-75.7, 38.62], [-75.53, 39.03], [-75.18, 39.18], [-75.03, 39.53], [-74.5, 39.75], [-74.25, 39.65], [-74.18, 39.68], [-74.03, 40.03], [-73.5, 40.25], [-72.97, 40.03], [-72.75, 39.5], [-72.97, 38.97], [-73.32, 38.82], [-73.35, 38.75], [-73.32, 38.68], [-73.25, 38.65], [-73.0, 38.75], [-72.75, 38.65], [-72.5, 38.75], [-72.25, 38.65], [-72.0, 38.75], [-71.47, 38.53], [-71.25, 38.0], [-71.35, 37.75], [-71.25, 37.5], [-71.47, 36.97], [-72.0, 36.75], [-72.25, 36.85], [-72.32, 36.82], [-72.47, 36.47], [-73.0, 36.25], [-73.25, 36.35], [-73.5, 36.25], [-74.03, 36.47], [-74.25, 37.0], [-74.15, 37.25], [-74.18, 37.32], [-74.25, 37.35], [-74.5, 37.25], [-74.75, 37.35], [-74.82, 37.32], [-74.97, 36.97], [-75.32, 36.82], [-75.47, 36.47], [-76.0, 36.25], [-76.53, 36.47], [-76.75, 37.0], [-76.65, 37.25], [-76.75, 37.5], [-76.65, 37.75]]]]}, "2012-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.65, 37.75], [-76.75, 38.0], [-76.53, 38.53], [-76.0, 38.75], [-75.7, 38.62], [-75.53, 39.03], [-75.18, 39.18], [-75.03, 39.53], [-74.5, 39.75], [-74.25, 39.65], [-74.18, 39.68], [-74.03, 40.03], [-73.5, 40.25], [-72.97, 40.03], [-72.75, 39.5], [-72.97, 38.97], [-73.32, 38.82], [-73.35, 38.75], [-73.32, 38.68], [-73.25, 38.65], [-73.0, 38.75], [-72.75, 38.65], [-72.5, 38.75], [-72.25, 38.65], [-72.0, 38.75], [-71.47, 38.53], [-71.25, 38.0], [-71.35, 37.75], [-71.25, 37.5], [-71.47, 36.97], [-72.0, 36.75], [-72.25, 36.85], [-72.32, 36.82], [-72.47, 36.47], [-73.0, 36.25], [-73.25, 36.35], [-73.5, 36.25], [-74.03, 36.47], [-74.25, 37.0], [-74.15, 37.25], [-74.18, 37.32], [-74.25, 37.35], [-74.5, 37.25], [-74.75, 37.35], [-74.82, 37.32], [-74.97, 36.97], [-75.32, 36.82], [-75.47, 36.47], [-76.0, 36.25], [-76.53, 36.47], [-76.75, 37.0], [-76.65, 37.25], [-76.75, 37.5], [-76.65, 37.75]]]]}, "2012-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.65, 37.75], [-76.75, 38.0], [-76.53, 38.53], [-76.0, 38.75], [-75.7, 38.62], [-75.53, 39.03], [-75.18, 39.18], [-75.03, 39.53], [-74.5, 39.75], [-74.25, 39.65], [-74.18, 39.68], [-74.03, 40.03], [-73.5, 40.25], [-72.97, 40.03], [-72.75, 39.5], [-72.97, 38.97], [-73.32, 38.82], [-73.35, 38.75], [-73.32, 38.68], [-73.25, 38.65], [-73.0, 38.75], [-72.75, 38.65], [-72.5, 38.75], [-72.25, 38.65], [-72.0, 38.75], [-71.47, 38.53], [-71.25, 38.0], [-71.35, 37.75], [-71.25, 37.5], [-71.47, 36.97], [-72.0, 36.75], [-72.25, 36.85], [-72.32, 36.82], [-72.47, 36.47], [-73.0, 36.25], [-73.25, 36.35], [-73.5, 36.25], [-74.03, 36.47], [-74.25, 37.0], [-74.15, 37.25], [-74.18, 37.32], [-74.25, 37.35], [-74.5, 37.25], [-74.75, 37.35], [-74.82, 37.32], [-74.97, 36.97], [-75.32, 36.82], [-75.47, 36.47], [-76.0, 36.25], [-76.53, 36.47], [-76.75, 37.0], [-76.65, 37.25], [-76.75, 37.5], [-76.65, 37.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.7857474579435006}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1669829619711223}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.691617066566096, 27.127521539711154, 27.540094499828058, 27.383721593731764]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.10922470990573, 29.367859294202674, 29.64960307054622, 29.282007502620388]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8881904021614673, 2.03601197881951, 2.363146941356122, 2.1623970439572244]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.291185713177356, 2.938905141539351, 3.7857474579435006, 2.9187895237765815]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.437140517039515, 1.482160208836583, 1.6609818665689031, 1.4847587234010948]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6245300762254782, 1.739289918156274, 2.162022033342326, 1.835280750623784]}}