Twenty years' (1996-2016) tropospheric parameters for selected EPN stations derived from GPS double-difference processing - Open Research Data - Bridge of Knowledge

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Twenty years' (1996-2016) tropospheric parameters for selected EPN stations derived from GPS double-difference processing

Description

Propagation of global navigation satellite systems (GNSS) signals through the Earth’s atmosphere is affected by its physical properties. Both hydrostatic and wet part of the atmosphere (mostly related with troposphere) causes delays of GNSS signal, which usually are expressed in the zenith direction (zenith hydrostatic delay - ZHD, and zenith wet delay - ZWD). The combination of these delays is called zenith tropospheric delay (ZTD). Time-space variations of ZTD reflects spatiotemporal changes of troposphere properties, such as air humidity, which plays key role in weather forming. The ZTD can be also converted to other important parameter such as precipitable water vapor.
This dataset contains hourly ZTDs time series estimated based on 30-second GPS observations derived from 20 EPN (EUREF Permanent Network) stations, that have been operating constantly for 20 years (1996-2016). The calculation was performed using Bernese GNSS Software 5.2 in the double-difference mode. The 5° elevation mask was adopted to cut-off low elevation satellites. The first-order ionospheric delays were eliminated using iono-free linear combination, while second-order and third-order effects were modelled. The IGS08 type mean antenna was adopted. The dataset contains two subsets which differ in tropospheric delays estimation. The first dataset (BSW_DD_VMF) contains ZTD estimated using Vienna Mapping Function1 (VMF1), while the second one (BSW_DD_GMF) was estimated using Global Mapping Function (GMF).

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Dataset file

bsw_dd_ztd.zip
97.3 MB, S3 ETag d9ea9d1b08746fc19268a30a73d55704-1, downloads: 66
The file hash is calculated from the formula
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} where a single part of the file is 512 MB in size.

Example script for calculation:
https://github.com/antespi/s3md5
download file bsw_dd_ztd.zip

File details

License:
Creative Commons: by-nc-sa 4.0 open in new tab
CC BY-NC-SA
Non-commercial - Share-alike

Details

Year of publication:
2020
Verification date:
2020-12-17
Dataset language:
English
Fields of science:
  • Civil engineering and transport (Engineering and Technology)
  • environmental engineering, mining and energy (Engineering and Technology)
  • Earth and related environmental sciences (Natural sciences)
DOI:
DOI ID 10.34808/jkh0-dh65 open in new tab
Verified by:
Gdańsk University of Technology

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