wardappeltans
commented
8 years ago Dear Leen
The Tier-2 nodes are the ones that are harvested by Tier-1 (iOBIS). You can see that list at the harvest reports. All the rest is Tier-3.
Since Tier-3 provides their data to Tier-2 (e.g. OPI to EurOBIS or OTN to OBIS Canada) it was not recommended to have a Tier-3-to-GBIF connection. However, if a tier-3 would like to send data directly to GBIF than that should possible.
The Terms of Reference for OBIS nodes is available in the manual (http://beta.iobis.org/manual/nodes/) and make a reference to specific Tier 1-2-3 activities. This is based on the table that was indeed adopted at SG-OBIS-II as you suggested.
As far as I know GBIF will be harvesting OBIS tier-2 nodes after they have completed the registration process at GBIF. I think in some cases there are indeed data streams between OBIS nodes and GBIF nodes (they are called GBIF publishers now I think). In that case they need to agree amongst each other on who will be sending the data to GBIF (i.e. register the dataset at GBIF or not). In other words, only one node should register a dataset with GBIF to avoid duplication at GBIF. Note that GBIF will harvest any the dataset that is published and registered with GBIF, while iOBIS will only harvest datasets from OBIS nodes regardless of whether the datasets are registered with GBIF. So it is important for OBIS that all marine datasets end up in an OBIS node (and comply with our standards and recommended practices).
Any more questions or something not clear yet? good luck with the presentation.Let me know how it went.
GitHub says “At the 4th session of the OBIS Steering Group (SG-OBIS-IV, Feb 2015), it was recommended that GBIF should harvest OBIS tier 2 nodes if OBIS tier 2 nodes could also harvest marine datasets from their GBIF nodes.”
the GBIF-iOBIS agreement says “to encourage collaboration between OBIS nodes and GBIF nodes in mobilizing data to the respective networks with minimum duplication of effort…”.
What is the status of the TIER 2 - TIER 3 structure? EurOBIS and MedOBIS are TIER 2 nodes, who else? Does this mean that TIER 3 nodes (who are they?) are not asked to open up their data for GBIF?
perhaps the new website can include a scheme on this structure and explain which nodes fall under which TIER structure and which tasks are listed for which TIER-level. The scheme from SG-OBIS-II lists the tasks and responsibilities and can be helpful for this.
If I understand correctly, both GBIF and its nodes will be harvesting from OBIS nodes? This seems like a duplication of effort?
Please explain/clarify...