| name | macneice-2024-fisk-heliospheric-field-source-mapping |
| description | Per-entry paper-skill in wave500_coronal_source_mapping_pfss_045 (HelioSI 501-corpus). See body and metadata.yaml for paper identity and claim boundary. |
| paper | {"authors_verified":false} |
macneice-2024-fisk-heliospheric-field-source-mapping
Runtime-neutral paper-skill. Layered: (1) scientific invariants, (2) executable protocol against abstract capabilities, (3) adapter notes (optional examples only), (4) research-generation affordances.
Trigger
Reach for this skill when source-mapping L1 disturbances with a Fisk-style heliospheric field rather than a pure Parker spiral on top of PFSS.
Layer 1 — Scientific invariant
Paper identity
- Title: Identifying Coronal Sources of L1 Solar Wind Disturbances Using the Fisk Heliospheric Magnetic Field and Potential Field Source Surface Model
- First author: TODO_verify
- Authors: TODO_verify
- Year: 2024
- arXiv: 2404.11219 (posted 2024-04-17)
- Journal: TODO_verify_with_full_text
- DOI: TODO_verify_with_full_text
Claim (narrow form)
Combining Fisk-field connectivity with PFSS source-surface topology yields source-region identifications for L1 disturbances that are statistically more consistent with EUV coronal-hole boundaries than Parker-only mapping.
Method assumptions
- Fisk field can be parameterized for the studied interval.
- PFSS provides the source-surface topology.
- L1 disturbance catalog is independent of mapping.
Data assumptions
- OMNI L1 disturbance catalog.
- Synoptic Br for the studied window.
- AIA-derived CH boundary maps.
Failure modes (skill memory)
- Fisk-field parameters drift with cycle phase.
- PFSS R_ss sensitivity propagates into Fisk extension.
- CH-boundary segmentation drives the comparison metric.
Figure / numerical targets
- Fisk-vs-Parker source-mapping comparison.
- Source-region overlap with EUV CH boundary.
- Per-disturbance attribution table.
Claim boundary
In scope. The paper's window + Fisk-field parameterization.
Out of scope — do NOT generalize:
- Do NOT generalize to non-disturbance slow wind.
- Do NOT cite Fisk advantage outside the validated cycle phase.
Layer 2 — Executable protocol (capability-typed)
Required capabilities (abstract)
| Capability | Purpose | Notes |
|---|
magnetogram.fetch_synoptic_br() | Br | |
pfss.solve() | PFSS | |
fisk.heliospheric_field() | Fisk-field topology | parameter knob |
backmap.fisk_or_parker() | back-mapping under both | |
ch.detect_from_euv() | CH boundary | |
omni.fetch_disturbance_list() | L1 disturbances | |
Procedure
- Build L1 disturbance list.
- Solve PFSS; build Fisk extension.
- Back-map each disturbance under Parker and Fisk.
- Compare source overlap with EUV CH boundary.
Validation target
Recover Fisk-vs-Parker comparison statistic.
Layer 3 — Adapter / runtime notes (optional examples)
- sunkit-magex.pfss; Fisk-field implementation is paper-specific.
Layer 4 — Research-generation affordances
- Compose with [[koukras-2022-backmapping-uncertainty-fast-wind]] for a unified backmapping-uncertainty framework.
- Generative hypothesis: replacing PFSS with outflowpy under the Fisk topology should change source-region attribution by amounts predictable from latitude.
Skill graph → depends_on
- [[paper-stansby-2020-pfsspy-python-pfss]]
- [[koukras-2022-backmapping-uncertainty-fast-wind]]
Links
TODOs for full-text verification
- lead author
- DOI
- Fisk parameterization
- disturbance catalog