{
  "name": "Snowflakes: shape against air temperature and water vapour",
  "desc": "Which shape snow crystals take near the temperatures named in two readable accounts (plates near -2 °C, columns and needles near -5 °C, thin plates and stars near -15 °C, plates at -20 °C, columns around -30 °C) and how extra water vapour adds branching; one statement per row with its temperature qualifier and source.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Ants, Cells & Atoms",
  "url": "https://antscellsandatoms.com/molecules/snowflakes/",
  "from": [
    "Libbrecht 2019 monograph (chapter 10, section 4.8) and Libbrecht 2019 morphology-diagram paper (introduction), read 2026-10-24"
  ],
  "how": "Compiled by Ants, Cells & Atoms from the data listed",
  "data_by": [
    "Libbrecht KG, A Quantitative Physical Model of the Snow Crystal Morphology Diagram, arXiv 1910.09067 v2 (2019), https://arxiv.org/abs/1910.09067, retrieved 2026-10-24",
    "Libbrecht KG, Snow Crystals, monograph, arXiv 1910.06389 v2 (2021), https://arxiv.org/abs/1910.06389, retrieved 2026-10-24"
  ]
}