The fundamental reference marker for the NGF/IGN69 system, designated M.AC-0-VIII, is located inside the buildings of the Marseille Tide Gauge.
Sources
- Les réseaux de nivellement français - Géodésie (geodesie.ign.fr)
- https://www.aftopo.org/lexique/repere-fondamental-du-ngf/ (aftopo.org)
- https://refmar.shom.fr/references-de-hauteur-en-maregraphie (refmar.shom.fr)
- https://journals.openedition.org/ephaistos/8716?lang=en (journals.openedition.org)
More in Science
- ICD-11 includes approximately 5,500 rare diseases and their synonyms.
- The Polish tetrapod footprints indicate that four-limbed, digit-bearing vertebrates were walking nearly 20 million years earlier than previously thought based on the fossil record.
- Many scientific proposals have been made for different stages of the abiogenesis process.
- The 2020 Dietary Guidelines process included 43 pregnancy and 'Birth to 24 Months' systematic reviews whose evidence searches ended no later than July 2017, with most examining data only through July 2016.
- In the meta-analysis, every additional 48 grams of whole grains consumed per day was associated with reductions in body weight, waist circumference, total cholesterol, and interleukin-6 (IL-6).
- The interannual variation used for NOAA sea-level anomaly calculations is derived by removing both the long-term trend and the average seasonal cycle from the monthly mean sea level.