Text · dataset · 2025

Lettau Automatic Weather Station, 2006 quality-controlled observational data.

Listed in AMRDC Data Repository

These files contain monthly observational data that have been quality-controlled using semi-automated computer programs as well as oversight by our staff.

Description

The filenames are prefixed with a label identifying one of three different observation intervals - ten minute (10min), one hour (1hr), and three hour (3hr). The rest of the filename consists of a standardized string composed of (in order) a three-letter code to indicate the station, the year, the month, and the frequency of the data (e.g. 3hr-[III][YYYY][MM]q3h.txt for three-hourly data).

Each set of daily observations begins at 0000 UTC. The hourly data are recorded at the top of every hourly interval: i.e. at 0000 UTC, 0100 UTC, 0200 UTC, 0300 UTC, etc. for the one-hour data; and at 0000 UTC, 0300 UTC, 0600, etc. for the three-hour data. The data files contain a two-line header that gives the year, month, 3 letter ID, Argos ID, and station name in the first line; and latitude, longitude, and elevation in the second line.

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The columns are organized in the following order:

Year
Julian day
Month
Day
Observation time (UTC)
Temperature (C)
Pressure (hPa)
Wind Speed (m/s)
Wind Direction (deg)
Relative Humidity (%)
Delta-T (C)

Topics

Stated by source: AMRC Automatic Weather Station project data, 1980 - present (ongoing).
From keywords: Earth & Environmental Science · Ocean & Atmospheric Science

Provenance · 1 source records, 11 field assertions

Source	Key	Last seen	Raw
AMRDC Data Repository	d754b1c6-33d7-469e-a5cd-cf53045f5887	10 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
concepts[field].local:field:earth-environmental	mapping · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
concepts[field].local:field:ocean-atmospheric	mapping · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
concepts[topic].ckan_group:amrdcdata_ssec_wisc_edu:automatic-weather-station-project	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
created_date	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
description	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0	/notes
license_text	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
publication_date	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
title	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0	/title
updated_date	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0
version_label	source · amrdcdata ssec wisc edu	connector:amrdcdata_ssec_wisc_edu@1.0.0

Lettau Automatic Weather Station, 2006 quality-controlled observational data.

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