SOURCES, CITATIONS AND USE TERMS

Dataset citation (cite the subset and access date):

Menne, Matthew J., Imke Durre, Bryant Korzeniewski, Shelley McNeill, Kristy
Thomas, Xungang Yin, Steven Anthony, Ron Ray, Russell S. Vose, Byron E. Gleason,
and Tamara G. Houston (2012): Global Historical Climatology Network - Daily
(GHCN-Daily), Version 3. NOAA National Climatic Data Center.
https://doi.org/10.7289/V5D21VHZ
Subset: PRCP observation dates 2016-01-01 through 2025-12-31 at USW00094789,
USW00023174, USW00013874, USW00094846, USW00012839 and USW00024233; MDPR/DAPR
rows in the same interval are retained only for excluded-multiday accounting.
Accessed 2026-10-20. Exact snapshot hashes and URLs are in sources.json.

The dataset metadata also requests this methods/overview citation:

Menne, Matthew J., Imke Durre, Russell S. Vose, Byron E. Gleason, and Tamara G.
Houston (2012): An Overview of the Global Historical Climatology Network-Daily
Database. Journal of Atmospheric and Oceanic Technology, 29, 897-910.
https://doi.org/10.1175/JTECH-D-11-00103.1

Dataset metadata, required citations and use constraints:
https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ncdc:C00861

Station history:
NOAA National Centers for Environmental Information, Historical Observing
Metadata Repository (HOMR), six station responses for 2016-01-01 through
2025-12-31, accessed 2026-10-20. The complete original responses and their
exact query URLs and hashes are retained in this package.
https://www.ncei.noaa.gov/access/homr/api

Definitions and day clock:

- NOAA GHCN-Daily README, Version 3.35: elements, units and flags.
  https://www.ncei.noaa.gov/pub/data/ghcn/daily/readme.txt
- NOAA by-station schema: eight fields; OBS-TIME is populated from HOMR.
  https://www.ncei.noaa.gov/pub/data/ghcn/daily/readme-by_station.txt
- National Weather Service F6 explanation: local-standard-time day.
  https://www.weather.gov/fwd/understandf6
- ASOS User's Guide (1998), sections 3.4.2 and 5.6: daily precipitation and
  daily summary cover 0000-2359 local standard time.
  https://www.weather.gov/media/asos/aum-toc.pdf

The README format version does not establish a separately pinned daily release
identifier. This package is bound to its actual downloaded source bytes.

Use and attribution:

NOAA's content guidance generally permits NOAA data use in products and asks
users to retain applicable credits, check third-party content, avoid implying
government endorsement, and distinguish adaptations from official material:
https://www.noaa.gov/office-education/outreach-communication/faq

The GHCN dataset metadata requests the citations above. It provides no warranty
of accuracy, reliability or completeness, places assessment of suitability on
the user, and disclaims liability for errors or omissions. Its station series
are not homogenized for every reporting-practice change. Consult the linked
metadata for the complete current terms. No Creative Commons license is
asserted for NOAA inputs here. This package does not claim copyright over
federal source data or imply NOAA/NCEI affiliation or endorsement.

The extracts preserve source rows but are an Influence selection, not a new
official NOAA distribution. The analysis, derived table, protocol presentation
and planning examples were prepared by Influence. They are distinct from the
NOAA source observations. No third-party journal figures are reproduced.

Conditional wet-day analysis is established prior work; this package makes no
first-discovery claim. One historical NOAA source is:
https://repository.library.noaa.gov/view/noaa/14102
