Stereo Cartosat-1 satellite remote sensing data in assessing topographic potential of soil erosion

Kumar, Suresh; Kumar, Anil; Saha, Sudip; Kumar, Ajay

doi:10.1007/s12524-008-0016-0

Cited by 8 publications

(3 citation statements)

References 11 publications

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“…Cartosat-1 (IRS-P5) was launched by the Indian Space Research Organisation (ISRO) in 2005 and is equipped with two panchromatic cameras tilted at –5° (AFT) and +26° (FWD) from the pitch axis [ 51 , 52 ]. These satellite cameras have a resolution of 2.5 m and a B/H ratio of 0.62 [ 53 ].…”

Section: Methodsmentioning

confidence: 99%

Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data

et al. 2016

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The assessment of glacier mass budget is crucial for assessing water reserves stored in glaciers. Derived glacier mass changes in the Muztag Ata and Kongur Tagh (MAKT) region in the eastern Pamir, northwestern China, is helpful in improving our knowledge of the dynamics of glaciers under a changing climate in High Mountain Asia. Here, glacier area and mass changes derived from remote sensing data are investigated for the period 1971/76–2013/14 for glaciers in MAKT. We have used ASTER images (2013/14), Cartosat-1 (2014) and Landsat, SRTM (Shuttle Radar Terrain Mission) digital elevation model (DEM) (2000), topographic maps (1971/76) and the first and second Chinese glacier inventories (CGIs). Our results indicated that the glacier area of MAKT decreased from 1018.3 ± 12.99 km2 in 1971/76 to 999.2 ± 31.22 km2 in 2014 (–1.9 ± 0.2%). Weak area shrinkage of glaciers by 2.5 ± 0.5 km2 (0.2 ± 0.1%) happened after 2000 and the period 2009–2014 even saw a slight expansion by 0.5 ± 0.1 km2 (0.1 ± 0.0%). The glaciers in this region have experienced an overall loss of –6.99 ± 0.80 km3 in ice volume or –0.15 ± 0.12 m water equivalent (w.e.) a–1 from 1971/76 to 2013/14. The mass budget of MAKT was –0.19 ± 0.19 m w.e. a−1 for the period ~1971/76–1999 and –0.14 ± 0.24 m w.e. a−1 during 1999–2013/2014. Similar to previous studies, there has been little mass change in the Pamir over recent decades despite such uncertainties. Glacier mass change showed spatial and temporal heterogeneity, with strong mass loss on debris-covered glaciers with an average of –0.32 ± 0.12 m w.e. a−1 from the 1970s to 2013/14.

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Section: Methodsmentioning

confidence: 99%

Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data

et al. 2016

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“…[1] Nucleic acids are detected by means of either heterogeneous or homogeneous assays involving nucleic acid hybridization. Heterogeneous assays of DNA and RNA-including Northern blotting, Southern blotting, and gene microarray chipsare the more popular methods, but require separation, transfer, and immobilization techniques, and/or long hybridization times.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] However, these methods require hazardous and expensive compounds, expensive systems, and tedious sample preparation and labeling.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Detection of DNA by Modulation of Thrombin Activity on Gold Nanoparticles

Jian

Huang

2011

Chemistry A European J

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A colorimetric, non-cross-linking aggregation-based gold-nanoparticle (AuNP) probe has been developed for the detection of DNA and the analysis of single-nucleotide polymorphism (SNP). The probe acts by modulating the enzyme activity of thrombin relative to fibrinogen. A thrombin-binding aptamer with a 29-base-long oligonucleotide (TBA(29)) assembled on the nanoparticles (TBA(29)-AuNPs) through sandwich DNA hybridization was found to possess ultra-high anticoagulant potency. The enzyme inhibition of thrombin was determined by thrombin-induced aggregation of fibrinogen-functionalized 56 nm AuNPs (Fib-AuNPs). The potency of the inhibition of TBA(29)-AuNPs relative to thrombin--and thus the degree of aggregation of the Fib-AuNPs--is highly dependent on the concentration of perfectly matched DNA (DNA(pm)). Under optimal conditions [Tris-HCl (20 mM, pH 7.4), KCl (5 mM), MgCl(2) (1 mM), CaCl(2) (1 mM), NaCl (150 mM), thrombin (10 pM), and TBA(29)-AuNPs (20 pM)], the new TBA(29)-AuNP/Fib-AuNP probe shows linear sensitivity to DNA(pm) in the concentration range 20-500 pM with a correlation coefficient of 0.96. The limit of detection for DNA(pm) was experimentally determined to be 12 pM, based on a signal-to-noise ratio (S/N) of 3. The new probe was successfully applied to the analysis of an SNP that is responsible for sickle cell anemia. Relative to conventional molecular-beacon-based probes, the new probe offers the advantages of higher sensitivity and selectivity towards DNA and lower cost, showing its great potential for practical studies of SNPs.

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Soil erosion estimation of Bhandara region of Maharashtra, India, by integrated use of RUSLE, remote sensing, and GIS

Kashiwar

Kundu

Dongarwar³

2021

Nat Hazards

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Stereo Cartosat-1 satellite remote sensing data in assessing topographic potential of soil erosion

Cited by 8 publications

References 11 publications

Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data

Mass Change of Glaciers in Muztag Ata–Kongur Tagh, Eastern Pamir, China from 1971/76 to 2013/14 as Derived from Remote Sensing Data

Colorimetric Detection of DNA by Modulation of Thrombin Activity on Gold Nanoparticles

Soil erosion estimation of Bhandara region of Maharashtra, India, by integrated use of RUSLE, remote sensing, and GIS

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