dorsal/arxiv
View SchemaAtmospheric pressure loading for routine data analysis
| Authors | L. Petrov, J. -P. Boy |
|---|---|
| Categories | |
| ArXiv ID | physics/0401117 |
| URL | https://arxiv.org/abs/physics/0401117 |
Abstract
We have computed 3-D displacements induced by atmospheric pressure loading from 6-hourly surface pressure field from NCEP (National Center for Environmental Predictions) Reanalysis data for all Very Long Baseline Interferometry) and SLR (Satellite Laser Ranging) stations. We have quantitatively estimated the error budget our time series of pressure loading and found that the errors are below 15%. We validated our loading series by comparing them with a dataset of 3.5 million VLBI observations for the period of 1980--2003. We have shown that the amount of power which is present in the loading time series, but does not present in the VLBI data is, on average, only 5%. We have also succeeded, for the first time, to detect horizontal displacements caused by atmospheric loading. The correction of atmospheric loading in VLBI data allows a significant reduction of baseline repeatability, except for the annual component.
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"date_created": "2026-03-02T18:00:50.140000Z",
"date_modified": "2026-03-02T18:00:50.140000Z",
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"abstract": "We have computed 3-D displacements induced by atmospheric pressure loading\nfrom 6-hourly surface pressure field from NCEP (National Center for\nEnvironmental Predictions) Reanalysis data for all Very Long Baseline\nInterferometry) and SLR (Satellite Laser Ranging) stations. We have\nquantitatively estimated the error budget our time series of pressure loading\nand found that the errors are below 15%. We validated our loading series by\ncomparing them with a dataset of 3.5 million VLBI observations for the period\nof 1980--2003. We have shown that the amount of power which is present in the\nloading time series, but does not present in the VLBI data is, on average, only\n5%. We have also succeeded, for the first time, to detect horizontal\ndisplacements caused by atmospheric loading. The correction of atmospheric\nloading in VLBI data allows a significant reduction of baseline repeatability,\nexcept for the annual component.",
"arxiv_id": "physics/0401117",
"authors": [
"L. Petrov",
"J. -P. Boy"
],
"categories": [
"physics.geo-ph"
],
"title": "Atmospheric pressure loading for routine data analysis",
"url": "https://arxiv.org/abs/physics/0401117"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "b1ee28c2-7eb1-4985-80d0-31d36345c818",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
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