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DAS-RCN / DAS_metadata

Tools for standardizing Distributed Acoustic Sensing (DAS) metadata
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SSA/EGU comments #11

Open rmellors opened 1 year ago

rmellors commented 1 year ago

For completeness SSA 2022/Seattle Washington • Important parameters for using a DAS dataset: o Method of photonic estimation (dual-pulse, single-pulse, chirp, local oscillator) or at least require the category of photonic estimation (quantitative, non-quantitative) o SEAFOM standard of noise level (e.g., noise level estimate in rad/rt-hz at 1, 5,10,50 km) • Less important, but still relevant: o provenance of location estimation (why, how, when, who) o Dark fiber vs direct install o Fiber owner o Fiber operator o OTDR for array (w provenance as fibers do change)

EGU 2022 (related) Ways to transfer large amounts of data? Add trace start time to channel metadata? [but would this also imply sample rate and number of samples?

Other Timing could be other than GPS (e.g., NTP or PTP). Could add a timing metric for segments where timing lock was missing. Ownership of the cable, location of the first repeater, depth of water (marine or lake) Use a pointer to a file containing locations rather than repeat (implemented in July 25 version) Add metadata version number Add “user-defined” space

chad-earthscope commented 1 week ago

This issue continued at https://github.com/FDSN/DAS-metadata/issues/4