Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Dataset Open Access |
| Sprache: | en |
| Veröffentlicht: |
PANGAEA
2019
|
| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1594/PANGAEA.904138 |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1867171863541579776 |
|---|---|
| author | Higgs, Ben |
| author_facet | Higgs, Ben |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Matlab codes for measuring bubble sizes and heights above the seafloor from underwater video footage by manually picking bubble axes. The footage must contain the exit point of the bubbles on the seafloor and a known reference distance on the seafloor (usually in the form of two lasers for most underwater cameras). The geometry of the calculations uses Canadian Grids (Wakefield and Genin, 1987, doi:10.1016/0198-0149(87)90148-8) combined with additional geometry (McGovern, 2012 (thesis)). Uncertainties in the bubble sizes and rise heights come from the amount of bubble deviation towards or away from the camera as it rises. Since this deviation can't be measured, the code contains hard-coded deviation distances that increase with rise height. These deviations were originally measured from a selection of seeps along the Hikurangi Margin New Zealand (Higgs, 2019). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_904138 |
| institution | PANGAEA |
| language | en |
| publishDate | 2019 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seep-bubble measurement codes Higgs, Ben Bubbles; Canadian Grid; Hikurangi; MULT; Multiple investigations; New Zealand; seep Matlab codes for measuring bubble sizes and heights above the seafloor from underwater video footage by manually picking bubble axes. The footage must contain the exit point of the bubbles on the seafloor and a known reference distance on the seafloor (usually in the form of two lasers for most underwater cameras). The geometry of the calculations uses Canadian Grids (Wakefield and Genin, 1987, doi:10.1016/0198-0149(87)90148-8) combined with additional geometry (McGovern, 2012 (thesis)). Uncertainties in the bubble sizes and rise heights come from the amount of bubble deviation towards or away from the camera as it rises. Since this deviation can't be measured, the code contains hard-coded deviation distances that increase with rise height. These deviations were originally measured from a selection of seeps along the Hikurangi Margin New Zealand (Higgs, 2019). |
| title | Seep-bubble measurement codes |
| topic | Bubbles; Canadian Grid; Hikurangi; MULT; Multiple investigations; New Zealand; seep |
| url | https://doi.org/10.1594/PANGAEA.904138 |