Archive · dataset · 2025
Additional data for the publication "Long-distance chronometric leveling with a portable optical clock"
Listed in PTB-OAR
We have measured the geopotential difference between two locations separated by 457 km by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency.
Description
The 87Sr clocks have been compared side-by-side before and after one of the clocks was moved to the remote location. The chronometrically measured geopotential difference of 3918.1(2.6) m2 s−2 agrees with an independent geodetic determination of 3915.88(0.30) m2 s−2.
The uncertainty of the chronometric geopotential difference is equivalent to an uncertainty of 27 cm in height.
Links
Where it is published
- PTB-OAR record oar.ptb.de/resources/show/10.7795/720.20250315 ↗
landing page · from oar ptb de
- DOI doi.org/10.7795/720.20250315 ↗
DOI / persistent id · from oar ptb de
Catalogue records · 1
- OAI-PMH record oar.ptb.de/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Aoar.… ↗
metadata API · from oar ptb de
Topics
- From keywords
- Chemistry · Computer Science & AI · Earth & Environmental Science · Engineering · Geodesy · Physics
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| PTB-OAR | oai:oar.ptb.de:10.7795/720.20250315 | 4 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:field:370603 | mapping · oar ptb de | vocabulary-mapper@1.0.0 | keywords['geodesy'] |
| concepts[field].local:field:chemistry | mapping · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| concepts[field].local:field:engineering | mapping · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| concepts[field].local:field:physics | mapping · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| description | source · oar ptb de | connector:oar_ptb_de@1.0.0 | /metadata/dc/description |
| license_text | source · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| publication_date | source · oar ptb de | connector:oar_ptb_de@1.0.0 | |
| title | source · oar ptb de | connector:oar_ptb_de@1.0.0 | /metadata/dc/title |