Data · collection · 2018
BROKE-West active acoustic data workflow
Listed in NASA Earthdata CMR
Description
The attached file details the workflow for the processing and analysis of active acoustic data (Simrad EK60; 12, 38, 120 and 200 kHz) collected from RSV Aurora Australis during the 2006 BROKE-West voyage. The attached file is in Echoview(R) (echoview.com/) version 8 format. The Echoview file is suitable for working with fisheries acoustics, i.e. water column backscatter, data collected using a Simrad EK60 and the file is set-up to read 38, 120 and 200 kHz split-beam data.
The file has operators to remove acoustic noise, e.g. spikes and dropped pings, and operators for removing surface noise and seabed echoes. Echoes arising from krill are isolated using the ‘dB-difference’ method recommended by CCAMLR. The Echoview file is set-up to export the results of krill echo integration as both intervals and swarms.
Read the rest (1 more)
Full details of the method are available in Jarvis et al. (2010) and the krill swarms methods are described in Bestley et al. (2017).
Links
Get the data
- Download the dataset data.aad.gov.au/eds/4602/download ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.4225/15/5a977343db1b9 ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- Echoview website echoview.com ↗
documentation · from NASA CMR
- data.aad.gov.au /aadc/metadata/citation.cfm?entry_id=AAS_4050_EK60 ↗
Citation reference for this metadata record and dataset.
documentation · from NASA CMR
- Public information for AAS project 4050 secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=4050 ↗
project · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1458091341-AU_AADC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1458091341-AU_AADC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Acoustic Scattering · ECHO SOUNDERS · Euphausiids Krill · Fisheries · R/V Aurora Australis
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1458091341-AU_AADC | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:echo-sounders | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-invertebrates/arthropods/crustaceans/euphausiids-krill | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/aquatic-sciences/fisheries | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-acoustics/acoustic-scattering | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:r-v-aa | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |