{
  "annotation_id": "b5f30d90-3144-4523-9ad6-c790f53a5b05",
  "date_created": "2026-02-17T05:53:05.046000Z",
  "date_modified": "2026-02-17T05:53:05.046000Z",
  "file_hash": "415c2c231ff990488815bceb77342cf0df10db19042f9a03a9737f82837501fb",
  "private": false,
  "record": {
    "abstract": "Oceanographic instrumentation technology is currently under rapid transition towards increasingly open-source technology. Open-source buoys compete with commercial and closed-source buoys both in price, functionality and availability. Long-range radio (LoRa) is a communication technology which is inexpensive both in terms of data transfer cost and power without the need for pre-existing infrastructure. In this paper, we present OLB, an open-source drifter buoy using LoRa for coastal water measurements. OLB is designed to be reliable, low-cost, modifiable and power efficient. We present validation experiments demonstrating that OLB can achieve a radio telemetry range of more than 2 kilometres, and has an expected battery lifetime of up to seven months. Finally, we discuss the role and contribution of OLB in the space of open-source instrumentation and ocean modelling.",
    "arxiv_id": "2601.05615",
    "authors": [
      "Lars Willas Dreyer",
      "Andrea Pferscher",
      "Riccardo Sieve",
      "Jean Rabault",
      "Atle Jensen",
      "Einar Broch Johnsen",
      "Gaute Hope"
    ],
    "categories": [
      "physics.ao-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "OLB: An Open Lora Buoy for Coastal Water Measurements",
    "url": "https://arxiv.org/abs/2601.05615",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5ec171e7-dda6-4b4d-b489-d31a82d1561c",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}