# Assessment Instructions: Problem Set 07 — Capstone: GIC Risk and Course-Long Synthesis

## Inputs to Inspect
Student submission, this problem set, the solution key, the corresponding lecture slides/notes, and the referenced dataset(s) under `materials/ASTR370/data/`.

## Grading Standard
Award credit for correct method and units first, then for the specific numeric result. A student who shows correct reasoning with a small arithmetic slip should receive most of the available credit; a student with a correct-looking number but no visible derivation steps should not. Because this is a 300-level quantitative solar physics and space weather course, full marks require a genuine derivation wherever the problem set asks for one, and a genuinely reasoned (not merely asserted) interpretation wherever the problem asks for scientific judgment (e.g., honestly characterizing an order-of-magnitude estimate's uncertainty, or a historical reconstruction's disclosed range).

## Problem-Level Criteria
- Problem 1: verify both the ratio and its square root are recomputed correctly for the revised 500 nT/min value.
- Problem 2: verify the student explicitly discusses the two-estimate uncertainty rather than presenting a single Carrington Dst value as certain.
- Problem 3: verify the linear length-scaling claim is stated correctly and the high-latitude compounding explanation includes both the length and field-strength factors.
- Problem 4: verify at least four units are named in a physically correct causal order, not merely listed.

## Resubmission Policy
Students may resubmit within one week of receiving feedback. A resubmission must show a corrected derivation, not only a corrected final number, and should reference the specific feedback comment it addresses. Regrade to a maximum of 90% of the original point value unless the error was a grading mistake.

## Common Errors to Flag
- Treating the Carrington Dst estimate as a single certain number rather than a disclosed range in Problem 2.
- Omitting the geoelectric-field-strength factor (focusing only on grid length) in the high-latitude risk explanation for Problem 3.
- Listing course units out of causal order in the Problem 4 synthesis (e.g., placing the magnetosphere response before the flare/CME).