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Pith Number

pith:6AB5TNAP

pith:2026:6AB5TNAP3UWHO47CVUNESVE27X
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A frictional control mechanism of circumpolar transport in barotropic reentrant channel models

Atsushi Kubokawa, Humio Mitsudera, Takuro Matsuta, Tomomichi Ogata

In low-drag barotropic channel models, Rossby waves from barotropic instability transport westward momentum to form and sustain a westward circumpolar current, contributing to frictional control of circumpolar transport.

arxiv:2605.03915 v1 · 2026-05-05 · physics.flu-dyn · physics.geo-ph

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\pithnumber{6AB5TNAP3UWHO47CVUNESVE27X}

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Record completeness

1 Bitcoin timestamp
2 Internet Archive
3 Author claim open · sign in to claim
4 Citations open
5 Replications open
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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Analyses of the wave activity flux and momentum budget indicate that the Rossby wave transports westward momentum both northward and southward from the unstable region, which is responsible for the westward circumpolar current formation and maintenance.

C2weakest assumption

The idealized barotropic reentrant channel with topographic obstacles sufficiently captures the essential dynamics of frictional control in the real Antarctic Circumpolar Current, despite the authors' caution that direct application requires care.

C3one line summary

In low-drag barotropic channel models, Rossby waves from barotropic instability transport westward momentum to form and sustain a westward circumpolar current, contributing to frictional control of circumpolar transport.

Receipt and verification
First computed 2026-06-02T02:04:18.535023Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

f003d9b40fdd2c7773e2ad1a49549afddb7055cf2cbce482d0290498dd5d8bd5

Aliases

arxiv: 2605.03915 · arxiv_version: 2605.03915v1 · doi: 10.48550/arxiv.2605.03915 · pith_short_12: 6AB5TNAP3UWH · pith_short_16: 6AB5TNAP3UWHO47C · pith_short_8: 6AB5TNAP
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/6AB5TNAP3UWHO47CVUNESVE27X \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f003d9b40fdd2c7773e2ad1a49549afddb7055cf2cbce482d0290498dd5d8bd5
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "6367ab7d3e409e3fcded09f888d4adbc845e4ab2a1b86f937f6cbcab812eecfa",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-05T16:11:10Z",
    "title_canon_sha256": "6cf696b38bfcefcd55be48c647f41d6bbcb6de632aa7b8554105153784f515bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.03915",
    "kind": "arxiv",
    "version": 1
  }
}