{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:22:06.173125", "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-Jan-27_to_2021-Jan-29_126.0_-70.0"}, "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": 2021010002657}, "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": "January 27 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 29 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": 185263.3243801053}, "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": ["Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -70.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 129.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -71.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -67.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[115.47, -68.47], [116.0, -68.25], [116.25, -68.354], [116.323, -68.323], [116.47, -67.97], [117.0, -67.75], [117.25, -67.854], [117.323, -67.823], [117.47, -67.47], [118.0, -67.25], [118.25, -67.354], [118.5, -67.25], [118.75, -67.354], [119.0, -67.25], [119.25, -67.354], [119.323, -67.323], [119.47, -66.97], [120.0, -66.75], [120.25, -66.854], [120.5, -66.75], [120.75, -66.854], [121.0, -66.75], [121.25, -66.854], [121.5, -66.75], [121.75, -66.854], [122.0, -66.75], [122.25, -66.854], [122.5, -66.75], [123.03, -66.97], [123.177, -67.323], [123.25, -67.354], [123.5, -67.25], [123.75, -67.354], [124.0, -67.25], [124.25, -67.354], [124.5, -67.25], [124.75, -67.354], [125.0, -67.25], [125.5, -67.457], [126.0, -67.25], [126.5, -67.457], [127.0, -67.25], [127.25, -67.354], [127.5, -67.25], [127.75, -67.354], [128.0, -67.25], [128.25, -67.354], [128.5, -67.25], [128.75, -67.354], [129.0, -67.25], [129.53, -67.47], [129.677, -67.823], [130.03, -67.97], [130.25, -68.5], [130.146, -68.75], [130.25, -69.0], [130.03, -69.53], [129.677, -69.677], [129.53, -70.03], [129.0, -70.25], [128.75, -70.146], [128.677, -70.177], [128.53, -70.53], [128.0, -70.75], [127.75, -70.646], [127.677, -70.677], [127.53, -71.03], [127.0, -71.25], [126.75, -71.146], [126.677, -71.177], [126.53, -71.53], [126.0, -71.75], [125.75, -71.646], [125.5, -71.75], [125.25, -71.646], [125.0, -71.75], [124.75, -71.646], [124.5, -71.75], [124.25, -71.646], [124.0, -71.75], [123.75, -71.646], [123.5, -71.75], [123.25, -71.646], [123.0, -71.75], [122.75, -71.646], [122.5, -71.75], [122.25, -71.646], [122.0, -71.75], [121.75, -71.646], [121.5, -71.75], [121.25, -71.646], [121.0, -71.75], [120.75, -71.646], [120.5, -71.75], [120.25, -71.646], [120.0, -71.75], [119.75, -71.646], [119.5, -71.75], [119.25, -71.646], [119.0, -71.75], [118.75, -71.646], [118.5, -71.75], [118.25, -71.646], [118.0, -71.75], [117.47, -71.53], [117.323, -71.177], [117.25, -71.146], [117.0, -71.25], [116.47, -71.03], [116.323, -70.677], [115.97, -70.53], [115.823, -70.177], [115.47, -70.03], [115.25, -69.5], [115.354, -69.25], [115.25, -69.0], [115.47, -68.47]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-27T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.35355339059328, -69.25], [115.25, -69.0], [115.46966991411009, -68.46966991411009], [116.0, -68.25], [116.25, -68.35355339059328], [116.32322330470336, -68.32322330470336], [116.46966991411009, -67.96966991411009], [117.0, -67.75], [117.25, -67.85355339059328], [117.32322330470336, -67.82322330470336], [117.46966991411009, -67.46966991411009], [118.0, -67.25], [118.25, -67.35355339059328], [118.5, -67.25], [118.75, -67.35355339059328], [119.0, -67.25], [119.25, -67.35355339059328], [119.32322330470336, -67.32322330470336], [119.46966991411009, -66.96966991411009], [120.0, -66.75], [120.25, -66.85355339059328], [120.5, -66.75], [120.75, -66.85355339059328], [121.0, -66.75], [121.25, -66.85355339059328], [121.5, -66.75], [121.75, -66.85355339059328], [122.0, -66.75], [122.25, -66.85355339059328], [122.5, -66.75], [123.03033008588991, -66.96966991411009], [123.17677669529664, -67.32322330470336], [123.25, -67.35355339059328], [123.5, -67.25], [123.75, -67.35355339059328], [124.0, -67.25], [124.25, -67.35355339059328], [124.5, -67.25], [124.75, -67.35355339059328], [125.0, -67.25], [125.5, -67.45710678118654], [126.0, -67.25], [126.5, -67.45710678118654], [127.0, -67.25], [127.25, -67.35355339059328], [127.5, -67.25], [127.75, -67.35355339059328], [128.0, -67.25], [128.25, -67.35355339059328], [128.5, -67.25], [128.75, -67.35355339059328], [129.0, -67.25], [129.53033008588991, -67.46966991411009], [129.67677669529664, -67.82322330470336], [130.03033008588991, -67.96966991411009], [130.25, -68.5], [130.14644660940672, -68.75], [130.25, -69.0], [130.03033008588991, -69.53033008588991], [129.67677669529664, -69.67677669529664], [129.53033008588991, -70.03033008588991], [129.0, -70.25], [128.75, -70.14644660940672], [128.67677669529664, -70.17677669529664], [128.53033008588991, -70.53033008588991], [128.0, -70.75], [127.75, -70.64644660940672], [127.67677669529664, -70.67677669529664], [127.53033008588991, -71.03033008588991], [127.0, -71.25], [126.75, -71.14644660940672], [126.67677669529664, -71.17677669529664], [126.53033008588991, -71.53033008588991], [126.0, -71.75], [125.75, -71.64644660940672], [125.5, -71.75], [125.25, -71.64644660940672], [125.0, -71.75], [124.75, -71.64644660940672], [124.5, -71.75], [124.25, -71.64644660940672], [124.0, -71.75], [123.75, -71.64644660940672], [123.5, -71.75], [123.25, -71.64644660940672], [123.0, -71.75], [122.75, -71.64644660940672], [122.5, -71.75], [122.25, -71.64644660940672], [122.0, -71.75], [121.75, -71.64644660940672], [121.5, -71.75], [121.25, -71.64644660940672], [121.0, -71.75], [120.75, -71.64644660940672], [120.5, -71.75], [120.25, -71.64644660940672], [120.0, -71.75], [119.75, -71.64644660940672], [119.5, -71.75], [119.25, -71.64644660940672], [119.0, -71.75], [118.75, -71.64644660940672], [118.5, -71.75], [118.25, -71.64644660940672], [118.0, -71.75], [117.46966991411009, -71.53033008588991], [117.32322330470336, -71.17677669529664], [117.25, -71.14644660940672], [117.0, -71.25], [116.46966991411009, -71.03033008588991], [116.32322330470336, -70.67677669529664], [115.96966991411009, -70.53033008588991], [115.82322330470336, -70.17677669529664], [115.46966991411009, -70.03033008588991], [115.25, -69.5], [115.35355339059328, -69.25]]]}, "2021-01-28T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.35355339059328, -69.25], [115.25, -69.0], [115.46966991411009, -68.46966991411009], [116.0, -68.25], [116.25, -68.35355339059328], [116.32322330470336, -68.32322330470336], [116.46966991411009, -67.96966991411009], [117.0, -67.75], [117.25, -67.85355339059328], [117.32322330470336, -67.82322330470336], [117.46966991411009, -67.46966991411009], [118.0, -67.25], [118.25, -67.35355339059328], [118.5, -67.25], [118.75, -67.35355339059328], [119.0, -67.25], [119.25, -67.35355339059328], [119.32322330470336, -67.32322330470336], [119.46966991411009, -66.96966991411009], [120.0, -66.75], [120.25, -66.85355339059328], [120.5, -66.75], [120.75, -66.85355339059328], [121.0, -66.75], [121.25, -66.85355339059328], [121.5, -66.75], [121.75, -66.85355339059328], [122.0, -66.75], [122.25, -66.85355339059328], [122.5, -66.75], [123.03033008588991, -66.96966991411009], [123.17677669529664, -67.32322330470336], [123.25, -67.35355339059328], [123.5, -67.25], [123.75, -67.35355339059328], [124.0, -67.25], [124.25, -67.35355339059328], [124.5, -67.25], [124.75, -67.35355339059328], [125.0, -67.25], [125.5, -67.45710678118654], [126.0, -67.25], [126.5, -67.45710678118654], [127.0, -67.25], [127.25, -67.35355339059328], [127.5, -67.25], [127.75, -67.35355339059328], [128.0, -67.25], [128.25, -67.35355339059328], [128.5, -67.25], [128.75, -67.35355339059328], [129.0, -67.25], [129.53033008588991, -67.46966991411009], [129.67677669529664, -67.82322330470336], [130.03033008588991, -67.96966991411009], [130.25, -68.5], [130.14644660940672, -68.75], [130.25, -69.0], [130.03033008588991, -69.53033008588991], [129.67677669529664, -69.67677669529664], [129.53033008588991, -70.03033008588991], [129.0, -70.25], [128.75, -70.14644660940672], [128.67677669529664, -70.17677669529664], [128.53033008588991, -70.53033008588991], [128.0, -70.75], [127.75, -70.64644660940672], [127.67677669529664, -70.67677669529664], [127.53033008588991, -71.03033008588991], [127.0, -71.25], [126.75, -71.14644660940672], [126.67677669529664, -71.17677669529664], [126.53033008588991, -71.53033008588991], [126.0, -71.75], [125.75, -71.64644660940672], [125.5, -71.75], [125.25, -71.64644660940672], [125.0, -71.75], [124.75, -71.64644660940672], [124.5, -71.75], [124.25, -71.64644660940672], [124.0, -71.75], [123.75, -71.64644660940672], [123.5, -71.75], [123.25, -71.64644660940672], [123.0, -71.75], [122.75, -71.64644660940672], [122.5, -71.75], [122.25, -71.64644660940672], [122.0, -71.75], [121.75, -71.64644660940672], [121.5, -71.75], [121.25, -71.64644660940672], [121.0, -71.75], [120.75, -71.64644660940672], [120.5, -71.75], [120.25, -71.64644660940672], [120.0, -71.75], [119.75, -71.64644660940672], [119.5, -71.75], [119.25, -71.64644660940672], [119.0, -71.75], [118.75, -71.64644660940672], [118.5, -71.75], [118.25, -71.64644660940672], [118.0, -71.75], [117.46966991411009, -71.53033008588991], [117.32322330470336, -71.17677669529664], [117.25, -71.14644660940672], [117.0, -71.25], [116.46966991411009, -71.03033008588991], [116.32322330470336, -70.67677669529664], [115.96966991411009, -70.53033008588991], [115.82322330470336, -70.17677669529664], [115.46966991411009, -70.03033008588991], [115.25, -69.5], [115.35355339059328, -69.25]]]}, "2021-01-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[115.35355339059328, -69.25], [115.25, -69.0], [115.46966991411009, -68.46966991411009], [116.0, -68.25], [116.25, -68.35355339059328], [116.32322330470336, -68.32322330470336], [116.46966991411009, -67.96966991411009], [117.0, -67.75], [117.25, -67.85355339059328], [117.32322330470336, -67.82322330470336], [117.46966991411009, -67.46966991411009], [118.0, -67.25], [118.25, -67.35355339059328], [118.5, -67.25], [118.75, -67.35355339059328], [119.0, -67.25], [119.25, -67.35355339059328], [119.32322330470336, -67.32322330470336], [119.46966991411009, -66.96966991411009], [120.0, -66.75], [120.25, -66.85355339059328], [120.5, -66.75], [120.75, -66.85355339059328], [121.0, -66.75], [121.25, -66.85355339059328], [121.5, -66.75], [121.75, -66.85355339059328], [122.0, -66.75], [122.25, -66.85355339059328], [122.5, -66.75], [123.03033008588991, -66.96966991411009], [123.17677669529664, -67.32322330470336], [123.25, -67.35355339059328], [123.5, -67.25], [123.75, -67.35355339059328], [124.0, -67.25], [124.25, -67.35355339059328], [124.5, -67.25], [124.75, -67.35355339059328], [125.0, -67.25], [125.5, -67.45710678118654], [126.0, -67.25], [126.5, -67.45710678118654], [127.0, -67.25], [127.25, -67.35355339059328], [127.5, -67.25], [127.75, -67.35355339059328], [128.0, -67.25], [128.25, -67.35355339059328], [128.5, -67.25], [128.75, -67.35355339059328], [129.0, -67.25], [129.53033008588991, -67.46966991411009], [129.67677669529664, -67.82322330470336], [130.03033008588991, -67.96966991411009], [130.25, -68.5], [130.14644660940672, -68.75], [130.25, -69.0], [130.03033008588991, -69.53033008588991], [129.67677669529664, -69.67677669529664], [129.53033008588991, -70.03033008588991], [129.0, -70.25], [128.75, -70.14644660940672], [128.67677669529664, -70.17677669529664], [128.53033008588991, -70.53033008588991], [128.0, -70.75], [127.75, -70.64644660940672], [127.67677669529664, -70.67677669529664], [127.53033008588991, -71.03033008588991], [127.0, -71.25], [126.75, -71.14644660940672], [126.67677669529664, -71.17677669529664], [126.53033008588991, -71.53033008588991], [126.0, -71.75], [125.75, -71.64644660940672], [125.5, -71.75], [125.25, -71.64644660940672], [125.0, -71.75], [124.75, -71.64644660940672], [124.5, -71.75], [124.25, -71.64644660940672], [124.0, -71.75], [123.75, -71.64644660940672], [123.5, -71.75], [123.25, -71.64644660940672], [123.0, -71.75], [122.75, -71.64644660940672], [122.5, -71.75], [122.25, -71.64644660940672], [122.0, -71.75], [121.75, -71.64644660940672], [121.5, -71.75], [121.25, -71.64644660940672], [121.0, -71.75], [120.75, -71.64644660940672], [120.5, -71.75], [120.25, -71.64644660940672], [120.0, -71.75], [119.75, -71.64644660940672], [119.5, -71.75], [119.25, -71.64644660940672], [119.0, -71.75], [118.75, -71.64644660940672], [118.5, -71.75], [118.25, -71.64644660940672], [118.0, -71.75], [117.46966991411009, -71.53033008588991], [117.32322330470336, -71.17677669529664], [117.25, -71.14644660940672], [117.0, -71.25], [116.46966991411009, -71.03033008588991], [116.32322330470336, -70.67677669529664], [115.96966991411009, -70.53033008588991], [115.82322330470336, -70.17677669529664], [115.46966991411009, -70.03033008588991], [115.25, -69.5], [115.35355339059328, -69.25]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.636287779169322}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.913298971879588}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-14.30650995567379, -12.303511477344898, -13.836157854910311]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.5598348021819106, -2.3289459775226646, -3.2801843516106146]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.882898729895587, 8.090376989637257, 6.766621196105909]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.239480241673078, 9.636287779169322, 7.900104113813057]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4844355124994728, 2.01434830576402, 1.6734828317700763]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7608118936030914, 2.3144593685858914, 1.8602337760123604]}}