{
 "slug": "constable-cloud-hampstead-1821-09-11",
 "object": {
  "holder": "Royal Academy of Arts, London",
  "accession": "03/455",
  "title": "Cloud Study, Hampstead, Tree at Right",
  "date": "1821-09-11"
 },
 "window": {
  "start": "1821-09-11",
  "end": "1821-09-11",
  "hour_start": 10,
  "hour_end": 11,
  "basis": "Artist inscription, as transcribed by the National Gallery of Australia (2006); original verso not inspected.",
  "context_start": "1821-09-10",
  "context_end": "1821-09-12"
 },
 "alternative_date": {
  "date": "1821-09-27",
  "basis": "Royal Academy entry on Google Arts & Culture; retained without declaring an error."
 },
 "inscription": {
  "text": "Hampstead, Sepr 11, 1821. 10 to 11. Morning under the sun - Clouds silvery grey, on warm ground Sultry. Light wind to the S.W. fine all day - but rain in the night following",
  "url": "https://digital.nga.gov.au/archive/exhibition/constable/detail.cfm%3Firn=143229&bioartistirn=18283&mnuid=2&galid=7.html"
 },
 "station": {
  "title": "Luke Howard, The Climate of London, second edition (1833), vol. III, Table CLXXXIV, pp. 60–61",
  "pages": {
   "60": {
    "url": "https://archive.org/download/in.ernet.dli.2015.48048/page/n66_w2000.jpg",
    "sha256": "94f31331517db9c42e73fd7b4109969587359f18c3d1be2826f237907aa67ad3"
   },
   "61": {
    "url": "https://archive.org/download/in.ernet.dli.2015.48048/page/n67_w2000.jpg",
    "sha256": "e9a7f9ece12f5d7b8a64c96c6f2afb72a9cc656b3bde1c89b8358a487667169d"
   }
  },
  "station": "London-area main register; table does not name the observing site",
  "lat": null,
  "lon": null,
  "distance_km": null,
  "null_reason": "exact_observing_site_not_identified_on_table",
  "columns": "Wind; first Temp. Max./Min. in Fahrenheit; selected daily notes. Second thermometer, rain, barometer and hygrometer excluded."
 },
 "cet": {
  "name": "Met Office HadCET regional daily mean",
  "lat": null,
  "lon": null,
  "distance_km": null,
  "null_reason": "regional_series_not_point_station"
 },
 "series": [
  {
   "day": 10,
   "wind": "W",
   "temp_max_f": 70,
   "temp_min_f": 50,
   "date": "1821-09-10",
   "note": "Some thunder about noon: heavy showers: lunar halo.",
   "note_page": 60,
   "temp_min_c": 10.0,
   "temp_max_c": 21.1,
   "cet_mean_c": 14.3
  },
  {
   "day": 11,
   "wind": "W",
   "temp_max_f": 71,
   "temp_min_f": 52,
   "date": "1821-09-11",
   "note": "Cloudy: fine.",
   "note_page": 60,
   "temp_min_c": 11.1,
   "temp_max_c": 21.7,
   "cet_mean_c": 13.2
  },
  {
   "day": 12,
   "wind": "SW",
   "temp_max_f": 71,
   "temp_min_f": 51,
   "date": "1821-09-12",
   "note": "Showery morning: cloudy.",
   "note_page": 60,
   "temp_min_c": 10.6,
   "temp_max_c": 21.7,
   "cet_mean_c": 15.2
  }
 ],
 "alternative": {
  "day": 27,
  "wind": "NW",
  "temp_max_f": 63,
  "temp_min_f": 49,
  "date": "1821-09-27",
  "note": "Cloudy.",
  "note_page": 61,
  "temp_min_c": 9.4,
  "temp_max_c": 17.2,
  "cet_mean_c": 13.3
 },
 "unresolved": {
  "local_humidity": null,
  "local_humidity_reason": "no_hourly_hampstead_observation",
  "local_overnight_rain": null,
  "local_overnight_rain_reason": "nearby_register_does_not_locate_rain_at_easel",
  "painted_cloud_match": null,
  "painted_cloud_match_reason": "daily_register_does_not_record_individual_clouds"
 },
 "receipts": {
  "australia": {
   "title": "National Gallery of Australia, Constable exhibition (2006), Tree at Right",
   "url": "https://digital.nga.gov.au/archive/exhibition/constable/detail.cfm%3Firn=143229&bioartistirn=18283&mnuid=2&galid=7.html",
   "sha256": "9229e8f12ea0170ab1318d24a2c84b47331b824aa98c5648af09abe6a2d0f8c6",
   "retrieved_at": "2026-10-07",
   "license": "Museum text; brief quotation and attributed paraphrase"
  },
  "brant": {
   "title": "Clare Brant, A Cloud (2019), inscription transcription",
   "url": "https://www.euromanticism.org/a-cloud/",
   "sha256": "64ed07872a96217d601515578e52d9909fd0a3a52d7dbd145680fe6f37a9ecc1",
   "retrieved_at": "2026-10-07",
   "license": "Modern text copyright; Constable inscription public domain"
  },
  "google": {
   "title": "Royal Academy of Arts on Google Arts & Culture: conflicting date metadata",
   "url": "https://artsandculture.google.com/asset/cloud-study-hampstead-tree-at-right-john-constable/RgH4MGcY1YjWvA?hl=en",
   "sha256": "ceb3f3fe930ed0228b43552c9ff270d717b090c2b740a0b1fb47b0bdd84add18",
   "retrieved_at": "2026-10-07",
   "license": "Museum metadata; no image reused from this source"
  },
  "howard-table": {
   "title": "Howard, The Climate of London (1833), vol. III, Table CLXXXIV, p. 60",
   "url": "https://archive.org/download/in.ernet.dli.2015.48048/page/n66_w2000.jpg",
   "sha256": "94f31331517db9c42e73fd7b4109969587359f18c3d1be2826f237907aa67ad3",
   "retrieved_at": "2026-10-07",
   "license": "Public domain; Internet Archive / Digital Library of India"
  },
  "howard-notes": {
   "title": "Howard, notes and results, p. 61",
   "url": "https://archive.org/download/in.ernet.dli.2015.48048/page/n67_w2000.jpg",
   "sha256": "e9a7f9ece12f5d7b8a64c96c6f2afb72a9cc656b3bde1c89b8358a487667169d",
   "retrieved_at": "2026-10-07",
   "license": "Public domain; Internet Archive / Digital Library of India"
  },
  "howard-transcription": {
   "title": "Nephos transcription of four Howard rows; scans pp. 60–61",
   "url": "https://archive.org/download/in.ernet.dli.2015.48048/page/n66_w2000.jpg",
   "sha256": "d72784912bf0b5f970304ab230dd662746041efacad5efcf5d2535ed3e86a766",
   "retrieved_at": "2026-10-07",
   "license": "CC BY 4.0; underlying text public domain"
  },
  "howard-volume": {
   "title": "Howard, vol. III, OCR: station context in contents",
   "url": "https://archive.org/download/in.ernet.dli.2015.48048/2015.48048.Climate-Of-London--Vol3_djvu.txt",
   "sha256": "028b1ced78a27989871dadcb60698f9cbee71cc428f20dc2c3d1df2c71f40774",
   "retrieved_at": "2026-10-07",
   "license": "Public domain"
  },
  "cet-daily": {
   "title": "Met Office HadCET daily mean temperature; Parker, Legg & Folland (1992)",
   "url": "https://www.metoffice.gov.uk/hadobs/hadcet/data/meantemp_daily_totals.txt",
   "sha256": "c6948508f8d4b1cff2b302c83d6506244c804abc2d088a743ef8ab6c630184cc",
   "retrieved_at": "2026-09-30",
   "license": "Open Government Licence; Met Office Hadley Centre"
  },
  "cet-docs": {
   "title": "Met Office HadCET regional series documentation",
   "url": "https://www.metoffice.gov.uk/hadobs/hadcet/",
   "sha256": "aa659d386a08aea95919142ddc082bc25d57e23cdaabcd2d9074f396740e65e0",
   "retrieved_at": "2026-10-07",
   "license": "Crown copyright; attributed description"
  },
  "cet-terms": {
   "title": "Met Office HadCET terms and requested citation",
   "url": "https://www.metoffice.gov.uk/hadobs/hadcet/terms_and_conditions.html",
   "sha256": "1feded3fa5d97b621aa234f3f6ec21be1cfbf0629b3d7da321593833420c4b6b",
   "retrieved_at": "2026-10-07",
   "license": "Open Government Licence"
  },
  "hampstead-rights": {
   "title": "Wikimedia Commons image rights record, captured web text",
   "url": "https://commons.wikimedia.org/wiki/File:John_Constable_(1776-1837)_-_Cloud_Study,_Hampstead,_Tree_at_Right_-_03-455_-_Royal_Academy_of_Arts.jpg",
   "sha256": "f25925a88f4ed598a4d6ae72c7d51dcfa715ae5415b288ce67c7a4631d3ed44f",
   "retrieved_at": "2026-10-07",
   "license": "PD-Art / public domain image; Commons text CC BY-SA"
  },
  "image-hampstead": {
   "title": "Royal Academy, Tree at Right, reproduction linked by Commons",
   "url": "https://d3d00swyhr67nd.cloudfront.net/w1200h1200/collection/WMR/RAA/WMR_RAA_PL000446-001.jpg",
   "sha256": "07cc7e984d88f24fb46dfe76c0a663dfc7aa71274c3911be01895efd6810123f",
   "retrieved_at": "2026-10-07",
   "license": "Public domain (PD-Art), via Art UK / Wikimedia Commons"
  }
 }
}