Analysis of the transformation of a cadastral documentation made for the agricultural lands from the local projection system - Iasi into the 1970-stereographic projection system

Abstract

The cadastral and land registration activity from the administrative territorial unit of Iasi city was conducted in various time intervals and it was characterized by different work instruments and methods. Thus, there are mentioned the topographic measurements made between 1950-1990 when the classical measuring technique and a local system of rectangular coordinates were used. In 1950 a Local – Stereographic projection – Iasi was adopted; it had its own 2D system of coordinates and the origin in the Golia point. After 1990, in a relatively short interval, the modern measuring methods started being used. There were included, among others, the measurement of distances using waves, the automatic processing of data and transmission of topographic plans. The cartographic documentations made between 1991 – 2009 also relied on the local projection system of coordinates – Iasi. Some of the works included: the measurement and evaluation of agricultural lands, the temporary registration in the land register etc. Starting with 2010 the system of plane rectangular coordinates from the 1970 Stereographic projection became official. From 2013 the Goliath transcalculation program started being used for the transformation of the plane rectangular coordinates from the old cadastral documentations of the Local system – Iasi into the official 1970 - Stereographic projection. The way in which cadastral sectors and real estates from the Local – Iasi system was integrated into the 1970 - Stereographic projection system was analysed considering the technical cadastral documentation from 2004. The case study included a total surface of 50.1808 ha of agricultural land from the unincorporated area of Iasi city. Cartographically speaking, the area was represented by the geodetic trapeziums L–35-32-A–c–3–II-3 and L–35-32-A–c–3–II-4, scale 1:2000, identified with ”Vasile Adamachi” farm of Iasi.