Essays about: "visible-near-infrared VNIR"

Found 3 essays containing the words visible-near-infrared VNIR.

  1. 1. Detecting Lithium Brine in Afghanistan Using Spaceborne Hyperspectral Data

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Torpikay Azizi; [2023-08-18]
    Keywords : PRISMA Hyperspectral data; lithium mineral deposits; lithium brine-rich deposits; Dashti-e- Nawar; boron deposits; Principal Component Analysis PCA ; supervised and unsupervised classification; spectral matching; spectral profile analysis; visible-near-infrared VNIR ; short-wave infrared SWIR Gypsum; Hectorite; Kaolinite; Lepidolite; lithium carbonate; lithium chloride;

    Abstract : The purpose of this thesis is to utilize hyperspectral remote sensing technology for the identification and evaluation of lithium mineral deposits in Afghanistan. Afghanistan boasts unique geological formations with substantial potential for lithium resources beneath its land crust. READ MORE

  3. 2. Effects of different biochar application rates on soil fertility and soil water retention in on-farm experiments on smallholder farms in Kenya

    University essay from SLU/Dept. of Soil and Environment

    Author : Helene Puehringer; [2016]
    Keywords : biochar; soil water retention; bulk density; macro nutrient availability; VNIR; maize cobs and stover; coffee husk;

    Abstract : Biochar is produced through pyrolysis, the thermo-chemical degradation of biomass under anaerobic or oxygen-limited conditions. Due to its properties related to surface area and porosity, bulk density, nutrient content, stability, cation exchange capacity (CEC), pH value, and carbon content, biochar has the potential to improve physical as well as chemical soil properties and thus improve crop productivity and contribute to carbon sequestration. READ MORE

  4. 3. Rapid soil quality assessment using portable visible near infrared (VNIR) spectroscopy

    University essay from SLU/Dept. of Soil and Environment

    Author : Getachew Gemtesa Tiruneh; [2014]
    Keywords : visible-near infrared; soil; Ethiopia; PLS; spectroscopy;

    Abstract : Visible-Near Infrared (VNIR) spectroscopy provides rapid, low cost, non-destructive and simultaneous measurements of several constituents from a single scan. The method has recently gained attention as an alternative to conventional soil analytical techniques in soil quality assessment. READ MORE