search

tdwg / dwc-for-biologging

Darwin Core recommendations for biologging data
Creative Commons Attribution 4.0 International
13 stars 3 forks source link

Where to describe equipment and protocol used for machine observations #10

Open peterdesmet opened 5 years ago

peterdesmet commented 5 years ago

Original question by @sarahcd:

Here I compiled the available sensor information (see the Movebank-format “reference data”) under samplingProtocol in the event and occurrence tables but that seemed a bit of a messy way to describe equipment, especially for cases where more sensor info is available and where detection limits or accuracy might be critical to interpreting measurements. For example, Movebank has a number of attributes used to describe tags and tag deployments on animals. In my experience these are a pretty basic set of attributes that can cover most information commonly available for most animal tracking data. Additional DwC terms could also take advantage of more thorough vocabularies, e.g. the SensorML vocabularies the BODC maintains for marine sensor data.

Answer by @albenson-usgs:

Hopefully someone will be able to give a more nuanced answer to this but I think the decision was to put all of that in the extended measurement or fact file. I noticed there were several pieces of data that were in your original version and didn’t make it into the DwC-A version. I think things like tag manufacturer, tag model, tag tech spec, sensor type, attachment type, duty cycle, etc could all go into extended measurement or fact.

Current example of samplingProtocol:

Lotek GPS collar deployed on free-ranging animal. Scheduled to collect location fixes every 5 min.

peterdesmet commented 5 years ago

I agree with @albenson-usgs, that info could be added as facts about the deployment:

id measurementType measurementValue
IDCoy_P3_1:deployment1 attachment type collar
IDCoy_P3_1:deployment1 deployment end type removal
IDCoy_P3_1:deployment1 deployment id 166760_Winter
IDCoy_P3_1:deployment1 duty cycle 5-min fixes
IDCoy_P3_1:deployment1 manipulation type none
IDCoy_P3_1:deployment1 study site Idaho National Engineering Laboratory
IDCoy_P3_1:deployment1 tag manufacturer name Lotek
IDCoy_P3_1:deployment1 tag model
IDCoy_P3_1:deployment1 tag readout method tag-retrieval

I think all of these are related to the deployment and not to the capture/recapture. Ideally they would also have a measurementValueID that links out to a definition for each of these facts/settings.

sarahcd commented 4 years ago

Thanks @albenson-usgs and @peterdesmet. Suggested additions to the MOF table made for V3 of the Mahoney case study, including measurementValueID.