Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Sourabh Pargal"'
Publikováno v:
Journal of Agrometeorology, Vol 18, Iss 1 (2016)
Leaf area index (LAI) is an important physiological trait that determines solar radiation interception and thus biomass. In this study leaf area index (LAI) was estimated from vertical gap fraction derived from top-of-canopy digital colour photograph
Externí odkaz:
https://doaj.org/article/96738183cc5f4ea3a2e7b3fed32107b0
Autor:
Viswanathan Chinnusamy, Vinay Kumar Sehgal, Rabi Narayan Sahoo, Gopal Krishna, Bappa Das, V. K. Gupta, Sourabh Pargal, Rakesh Kumar Verma
Publikováno v:
Geocarto International. 35:1415-1432
Successful retrieval of leaf area index (LAI) from hyperspectral remote sensing relies on the proper selection of indices or multivariate models. The objectives of the research work were to identif...
Autor:
Sourabh Pargal, Rakesh Fararoda, Gopalakrishnan Rajashekar, Natesan Balachandran, Maxime Réjou-Méchain, Nicolas Barbier, Chandra Shekhar Jha, Raphaël Pélissier, Vinay Kumar Dadhwal, Pierre Couteron
Publikováno v:
Remote Sensing, Vol 9, Iss 3, p 228 (2017)
Large scale assessment of aboveground biomass (AGB) in tropical forests is often limited by the saturation of remote sensing signals at high AGB values. Fourier Transform Textural Ordination (FOTO) performs well in quantifying canopy texture from ver
Externí odkaz:
https://doaj.org/article/2ae71e6d319640f194f13ef407d3149c
Autor:
Vinay Kumar Sehgal, Rakesh Kumar Verma, Rabi Narayan Sahoo, C. Viswanathan, V. K. Gupta, Sourabh Pargal, Gopal Krishna, Bappa Das
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 247
Accurate estimation of plant water status is a major factor in the decision-making process regarding general land use, crop water management and drought assessment. Visible-near infrared (VNIR) spectroscopy can provide an effective means for real-tim
Autor:
Rakesh Kumar Verma, Sourabh Pargal, Viswanathan Chinnusamy, Ankur Biswas, V. K. Gupta, Vinay Kumar Sehgal, Gopal Krishna, Bappa Das, Rabi Narayan Sahoo
Publikováno v:
Geocarto International. 35:64-77
Spectral discrimination of rice genotypes was investigated using canopy reflectance in the range of 350 to 2500 nm. The pre-processed reflectance spectra were statistically analysed using o...
Autor:
Vinay Kumar Sehgal, V. K. Gupta, Viswanathan Chinnusamy, Gopal Krishna, Bappa Das, Rakesh Kumar Verma, Rabi Narayan Sahoo, Sourabh Pargal
Publikováno v:
Biosystems Engineering. 160:69-83
Ten different wheat genotypes were studied for understanding their differential behaviour to different water-deficit stress levels. Hyperspectral data (350–2500 nm) and relative water content (RWC) of plants were measured at different stress level
Autor:
null BAPPA DAS, null R.N. SAHOO, null SOURABH PARGAL, null GOPAL KRISHNA, null V.K. GUPTA, null R. VERMA, null C. VISWANATHAN
Publikováno v:
Journal of Agrometeorology. 18:22-28
Leaf area index (LAI) is an important physiological trait that determines solar radiation interception and thus biomass. In this study leaf area index (LAI) was estimated from vertical gap fraction derived from top-of-canopy digital colour photograph
Autor:
C. Chattopadhyay, Prem Prakash Sinha, Ravender Singh, Sourabh Pargal, Mahender Singh Saharan, Gopal Krishna, V. K. Gupta, Someshwar Bhagat, Rabi Narayan Sahoo
The potential of hyperspectral reflectance data was explored to assess severity of yellow rust disease (Biotroph Pucciniastriiformis) of winter wheat in the present study. The hyperspectral remote sensing data was collected for winter wheat (Triticum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b7113aaad1765934422c81f7fc71ac0
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-8/1413/2014/
https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-8/1413/2014/
Autor:
Nilimesh Mridha, Gopal Krishna, V. K. Gupta, Dasika Nagesh Kumar, Vinay Kumar Sehgal, Sanatan Pradhan, Sourabh Pargal, Rabi Narayan Sahoo
Publikováno v:
International Agrophysics. 29:201-212
The inversion of canopy reflectance models is widely used for the retrieval of vegetation properties from remote sensing. This study evaluates the retrieval of soybean biophysical variables of leaf area index, leaf chlorophyll content, canopy chlorop
Autor:
Rabi Narayan Sahoo, Rakesh Kumar Verma, Sourabh Pargal, Vinay Kumar Sehgal, SK Dash, Viswanathan Chinnusamy, V. K. Gupta, Gopal Krishna, Bappa Das, Padmini Swain
Publikováno v:
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 192
In the present investigation, the changes in sucrose, reducing and total sugar content due to water-deficit stress in rice leaves were modeled using visible, near infrared (VNIR) and shortwave infrared (SWIR) spectroscopy. The objectives of the study