In possibly circumstance, the depths calculated needed to be read through manually and recorded, as did the position of every measurement with regard to mapped reference points as based on 3-position sextant fixes. The process was labor-intensive and time-consuming and, Even though Each and every specific depth measurement may very https://hydrographic-survey-in-dh95924.fitnell.com/73293910/considerations-to-know-about-hydrographic-survey-in-dhaka