{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:31.353496", "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": "2013-Jan-15_to_2013-Jan-27_308.5_3.5"}, "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": 2013010001862}, "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 15 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 27 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 13}, "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": 86375.47277925457}, "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": ["Brazil", "French Guiana"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": 3.5}, "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": 308.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "308.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.5, 4.25], [-50.97, 4.03], [-50.75, 3.5], [-50.97, 2.97], [-51.5, 2.75], [-52.03, 2.97], [-52.25, 3.5], [-52.03, 4.03], [-51.5, 4.25]]]]}, "2013-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.18, 4.18], [-53.03, 4.53], [-52.5, 4.75], [-52.25, 4.65], [-52.0, 4.75], [-51.47, 4.53], [-51.32, 4.18], [-50.97, 4.03], [-50.75, 3.5], [-50.85, 3.25], [-50.75, 3.0], [-50.97, 2.47], [-51.5, 2.25], [-51.75, 2.35], [-52.0, 2.25], [-52.25, 2.35], [-52.5, 2.25], [-52.75, 2.35], [-53.0, 2.25], [-53.25, 2.35], [-53.5, 2.25], [-54.03, 2.47], [-54.25, 3.0], [-54.03, 3.53], [-53.68, 3.68], [-53.53, 4.03], [-53.18, 4.18]]]]}, "2013-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.03, 3.53], [-53.68, 3.68], [-53.53, 4.03], [-53.18, 4.18], [-53.03, 4.53], [-52.5, 4.75], [-52.25, 4.65], [-52.0, 4.75], [-51.47, 4.53], [-51.32, 4.18], [-50.97, 4.03], [-50.75, 3.5], [-50.85, 3.25], [-50.75, 3.0], [-50.97, 2.47], [-51.5, 2.25], [-51.75, 2.35], [-52.0, 2.25], [-52.25, 2.35], [-52.5, 2.25], [-52.75, 2.35], [-52.82, 2.32], [-52.97, 1.97], [-53.5, 1.75], [-54.03, 1.97], [-54.25, 2.5], [-54.15, 2.75], [-54.25, 3.0], [-54.03, 3.53]]]]}, "2013-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.03, 3.53], [-53.68, 3.68], [-53.65, 3.75], [-53.75, 4.0], [-53.53, 4.53], [-53.0, 4.75], [-52.75, 4.65], [-52.5, 4.75], [-52.25, 4.65], [-52.0, 4.75], [-51.47, 4.53], [-51.32, 4.18], [-50.97, 4.03], [-50.75, 3.5], [-50.85, 3.25], [-50.75, 3.0], [-50.97, 2.47], [-51.32, 2.32], [-51.47, 1.97], [-51.82, 1.82], [-51.97, 1.47], [-52.5, 1.25], [-53.03, 1.47], [-53.2, 1.88], [-53.5, 1.75], [-54.03, 1.97], [-54.25, 2.5], [-54.15, 2.75], [-54.25, 3.0], [-54.03, 3.53]]]]}, "2013-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.15, 3.25], [-54.25, 3.5], [-54.03, 4.03], [-53.68, 4.18], [-53.53, 4.53], [-53.0, 4.75], [-52.47, 4.53], [-52.25, 4.0], [-52.37, 3.7], [-52.25, 3.65], [-52.0, 3.75], [-51.47, 3.53], [-51.25, 3.0], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-51.82, 1.82], [-51.97, 1.47], [-52.5, 1.25], [-53.03, 1.47], [-53.2, 1.88], [-53.5, 1.75], [-54.03, 1.97], [-54.25, 2.5], [-54.15, 2.75], [-54.25, 3.0], [-54.15, 3.25]]]]}, "2013-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.15, 3.25], [-54.25, 3.5], [-54.03, 4.03], [-53.68, 4.18], [-53.53, 4.53], [-53.0, 4.75], [-52.47, 4.53], [-52.25, 4.0], [-52.37, 3.7], [-52.25, 3.65], [-52.0, 3.75], [-51.47, 3.53], [-51.25, 3.0], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-51.82, 1.82], [-51.97, 1.47], [-52.5, 1.25], [-52.75, 1.35], [-53.0, 1.25], [-53.53, 1.47], [-53.68, 1.82], [-54.03, 1.97], [-54.25, 2.5], [-54.15, 2.75], [-54.25, 3.0], [-54.15, 3.25]]]]}, "2013-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.15, 3.25], [-54.25, 3.5], [-54.03, 4.03], [-53.68, 4.18], [-53.53, 4.53], [-53.0, 4.75], [-52.47, 4.53], [-52.25, 4.0], [-52.03, 4.53], [-51.5, 4.75], [-50.97, 4.53], [-50.75, 4.0], [-50.85, 3.75], [-50.75, 3.5], [-50.97, 2.97], [-51.32, 2.82], [-51.35, 2.75], [-51.25, 2.5], [-51.47, 1.97], [-51.82, 1.82], [-51.97, 1.47], [-52.5, 1.25], [-52.75, 1.35], [-53.0, 1.25], [-53.53, 1.47], [-53.68, 1.82], [-54.03, 1.97], [-54.25, 2.5], [-54.15, 2.75], [-54.25, 3.0], [-54.15, 3.25]], [[-52.37, 3.7], [-52.25, 3.65], [-52.18, 3.68], [-52.15, 3.75], [-52.25, 4.0], [-52.37, 3.7]]]]}, "2013-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.0, 3.25], [-52.47, 3.03], [-52.25, 2.5], [-52.35, 2.25], [-52.25, 2.0], [-52.47, 1.47], [-53.0, 1.25], [-53.53, 1.47], [-53.75, 2.0], [-53.65, 2.25], [-53.75, 2.5], [-53.53, 3.03], [-53.0, 3.25]]], [[[-53.03, 6.03], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47, 6.03], [-51.25, 5.5], [-51.35, 5.25], [-51.25, 5.0], [-51.37, 4.7], [-51.25, 4.65], [-51.0, 4.75], [-50.47, 4.53], [-50.25, 4.0], [-50.35, 3.75], [-50.25, 3.5], [-50.35, 3.25], [-50.25, 3.0], [-50.47, 2.47], [-51.0, 2.25], [-51.53, 2.47], [-51.68, 2.82], [-52.03, 2.97], [-52.25, 3.5], [-52.15, 3.75], [-52.25, 4.0], [-52.12, 4.3], [-52.53, 4.47], [-52.68, 4.82], [-53.03, 4.97], [-53.25, 5.5], [-53.03, 6.03]]]]}, "2013-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, 6.03], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47, 6.03], [-51.25, 5.5], [-51.35, 5.25], [-51.32, 5.18], [-50.97, 5.03], [-50.82, 4.68], [-50.47, 4.53], [-50.25, 4.0], [-50.35, 3.75], [-50.25, 3.5], [-50.35, 3.25], [-50.25, 3.0], [-50.47, 2.47], [-51.0, 2.25], [-51.53, 2.47], [-51.68, 2.82], [-52.03, 2.97], [-52.25, 3.5], [-52.15, 3.75], [-52.25, 4.0], [-52.15, 4.25], [-52.18, 4.32], [-52.25, 4.35], [-52.5, 4.25], [-53.03, 4.47], [-53.25, 5.0], [-53.15, 5.25], [-53.25, 5.5], [-53.03, 6.03]]]]}, "2013-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, 6.03], [-52.5, 6.25], [-52.25, 6.15], [-52.0, 6.25], [-51.47, 6.03], [-51.25, 5.5], [-51.35, 5.25], [-51.32, 5.18], [-50.97, 5.03], [-50.82, 4.68], [-50.47, 4.53], [-50.25, 4.0], [-50.35, 3.75], [-50.25, 3.5], [-50.35, 3.25], [-50.25, 3.0], [-50.47, 2.47], [-51.0, 2.25], [-51.53, 2.47], [-51.68, 2.82], [-52.03, 2.97], [-52.25, 3.5], [-52.15, 3.75], [-52.25, 4.0], [-52.15, 4.25], [-52.18, 4.32], [-52.25, 4.35], [-52.5, 4.25], [-53.03, 4.47], [-53.25, 5.0], [-53.15, 5.25], [-53.25, 5.5], [-53.03, 6.03]]]]}, "2013-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.03, 4.47], [-53.25, 5.0], [-53.03, 5.53], [-52.5, 5.75], [-51.97, 5.53], [-51.8, 5.12], [-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.85, 4.25], [-50.82, 4.18], [-50.47, 4.03], [-50.25, 3.5], [-50.35, 3.25], [-50.25, 3.0], [-50.47, 2.47], [-51.0, 2.25], [-51.53, 2.47], [-51.68, 2.82], [-52.03, 2.97], [-52.25, 3.5], [-52.15, 3.75], [-52.25, 4.0], [-52.15, 4.25], [-52.2, 4.38], [-52.5, 4.25], [-53.03, 4.47]]]]}, "2013-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.97, 3.97], [-51.5, 3.75], [-52.03, 3.97], [-52.25, 4.5], [-52.03, 5.03], [-51.5, 5.25]]]]}, "2013-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.5, 5.25], [-50.97, 5.03], [-50.75, 4.5], [-50.97, 3.97], [-51.5, 3.75], [-52.03, 3.97], [-52.25, 4.5], [-52.03, 5.03], [-51.5, 5.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.238647649157599}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.385629902589754}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.171884320435595, 26.421305789529924, 26.275762140791983, 26.345607659204575, 26.18967574514346, 26.513176062865455, 26.68531931992493, 26.39881358817422, 26.52198553524579, 26.69973675333364, 26.52318816939936, 26.586119722798514, 26.718456734470465]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.171884320435595, 26.745179312617438, 26.520270186728112, 26.77601305663319, 26.669548037066306, 27.3242866427517, 27.26658855624879, 26.723205839870673, 26.744399608745766, 27.082507560366423, 26.701232367123794, 26.586119722798514, 26.718456734470465]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1908367941503002, 1.6366777911536226, 1.4694453784547126, 1.5240986106539403, 1.3915717995919068, 1.7290207563433029, 1.8566878001745084, 0.9203101306909502, 0.8621641819513968, 1.0430818525185372, 1.0262231947927016, 0.7754657670762413, 0.9026312245491113]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1908367941503002, 1.9848012022969783, 1.688274568819395, 1.9619705645225167, 1.6295868216254235, 2.238647649157599, 2.193721193366059, 1.2878818138970018, 1.1141628698300678, 1.809263576850526, 1.3972012875393034, 0.7754657670762413, 0.9026312245491113]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5293612776812915, 1.9798193108073612, 1.6932437768874813, 1.7342634566484827, 1.531736662801039, 1.977213342707637, 2.237175278721484, 1.4062525293362806, 1.4873687765517452, 1.802549924211931, 1.6538061250042926, 1.3895904975161744, 1.632113659865762]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5293612776812915, 2.4994078087912963, 1.9304144052820826, 2.059683095537723, 1.732540060457546, 2.474833116273716, 2.529796306428914, 1.5148555181279277, 1.64466811400066, 2.498294842298278, 1.883440939459388, 1.3895904975161744, 1.632113659865762]}}