DEM Generation for Lunar Surface using Chandrayaan-1 TMC Triplet Data   总被引：1，自引：0，他引：1  

V. Sivakumar  Binay Kumar  Sandeep Kumar Srivastava  B. Gopala Krishna  Pradeep Kumar Srivastava  A. S. Kiran Kumar 《Journal of the Indian Society of Remote Sensing》2012,40(4):551-564

Digital Elevation Model (DEM) is an important prerequisite for understanding the lunar surface. However, making accurate DEM is a very challenging task due to (a) lack of support of projection parameters in COTS packages (eg. PCI Geomatica), which are to be used in generation of Lunar DEM and (b) unavailability of Ground Control Points (GCPs). In the present study, DEM generation of lunar surface was attempted without GCPs using Rational Function (RF) model from Chandrayaan-1 TMC triplet images. In the study, a good correlation (of almost same order) is observed between Nadir-Fore (NF), Nadir - Aft (NA), Fore - Aft (FA) and Fore - Nadir - Aft (FNA) image pairs. The results suggest that DEM for lunar surface can be created without GCPs using RF model.  相似文献   

Hyper-Spectral Imager in visible and near-infrared band for lunar compositional mapping     

A. S. Kiran Kumar  A. Roy Chowdhury 《Journal of Earth System Science》2005,114(6):721-724

  相似文献   

Analysis of apparent thermal inertia over different land use / land cover types using envisat AATSR data     

K. V. S. Badarinath  T. R. Kiran Chand 《Journal of the Indian Society of Remote Sensing》2007,35(2):185-191

  相似文献   

Real-time prediction of movement,intensity and storm surge of very severe cyclonic storm Hudhud over Bay of Bengal using high-resolution dynamical model     

Raghu Nadimpalli  Krishna K. Osuri  Sujata Pattanayak  U. C. Mohanty  M. M. Nageswararao  S. Kiran Prasad 《Natural Hazards》2016,81(3):1771-1795

  相似文献   

Bioremediation of salt affected soils using cyanobacteria in terms of physical structure,nutrient status and microbial activity     

R. Nisha  B. Kiran  A. Kaushik  C. P. Kaushik 《International Journal of Environmental Science and Technology》2018,15(3):571-580

In present investigation, consortia of two indigenous heterocystous cyanobacteria, Nostoc ellipsosporum HH-205 and Nostoc punctiforme HH-206 isolated from a salt affected area of Hisar, Haryana (India) were used as biofertilizer in bioremediation of salt affected soils having high electrical conductivity (13.5 dS/m) and pH (8) with poor organic carbon (0.3%) as well as nitrogen content (0.008%). The experiments were conducted in a pot house for the period of 240 days. There was a significant (P < 0.05) increase in carbon, phosphate, nitrogen, potassium, magnesium, cation exchange capacity, mean weight diameter and hydraulic conductivity of soil with biofertilizer treatment whereas sodium ion and electrical conductivity were found to be decreased. Improvement in soil aggregation and stability due to increased soil microbial activities (dehydrogenase, invertase and phosphomonoesterase) were also observed. Significant increase in growth and yield of pearl millet–wheat crop was observed in amended pots even under low water regime. Thus, the indigenous cyanobacterial species show promise in effective exploitation for phytoremediation and improved productivity of saline soils under semi-arid condition.  相似文献   

Morphometric and rheological study of lunar domes of Marius Hills volcanic complex region using Chandrayaan-1 and recent datasets     

A S Arya  R P Rajasekhar  Koyel Sur  B Gopala Krishna  K Suresh  T P Srinivasan  K V Iyer  P Chauhan  Ajai  A S Kiran Kumar  A D Pandey  A Khare  P K Verma 《Journal of Earth System Science》2018,127(5):70

Marius Hills volcanic complex is one of the most important regions on the lunar surface having an abundant number of volcanic features like domes and cones. Systematic mapping of 106 domes/cones in the Marius Hills region was carried out in this study using high-resolution orthoimage and digital elevation models of Chandrayaan-1 and Kaguya missions. Various morphometric parameters like diameter, height, volume, flank slope, circularity index and form factor are derived for all the mapped domes. The rheological parameters, such as viscosity and eruption rate are estimated for isolated domes and cones superimposed over low domes. The morphometric and rheological properties of these domes are comparable to those located in the area near to Hortensius crater and other mare regions. Surface ages derived for a selected region in NW portion of the Marius Hills volcanic complex using crater size-frequency distribution technique yields ages of 2.98 and 1.91 Ga. It suggests that the domes in this region formed at about 2.98 Ga ago, and then, the younger mare basalts likely embayed this region about 1.98 Ga ago. Stratigraphic sequence of rilles, wrinkle ridge and domes shows that wrinkle ridges are the oldest, while the rilles are younger than the domes.  相似文献   

Bi‐Solute Sorption of Estrogens at Low Concentration: Two‐ and Three‐Parametric Analysis     

A. Kiran Kumar  P. Suresh Babu  S. Venkata Mohan 《洁净——土壤、空气、水》2012,40(11):1236-1243

Competitive sorption of estriol (E3) and 17α‐ethinylestradiol (EE2) was studied on activated charcoal. Better sorption of E3 (88.9%) and EE2 (69.5%) was observed with single‐solute sorption system than with bi‐solute sorption system. Single‐solute sorption kinetics of E3 and EE2 were evaluated with two (Langmuir and Freundlich) and three (dual mode and Song) parameter models. Freundlich model (R², 0.9915 (E3); 0.9875 (EE2)) showed good prediction compared to other models for single‐solute sorption. Adsorption capacity documented reduced efficacy (86.4% (E3); 65.9% (EE2)) due to induced competitive behavior between the estrogens in aqueous phase. Bi‐solute adsorption kinetics of E3 and EE2 were described by IAST with two and three parameter models. Among these models, IAST‐Freundlich model (R², 0.9765 (E3); 0.9985 (EE2)) was best in predicting bi‐solute sorption of E3 and EE2 by activated charcoal. All these models showed favorable representation of both single‐ and bi‐solute sorption behaviors.  相似文献   

Comparison of Pine Bark,Biochar and Zeolite as Sorbents for NH4+‐N Removal from Water          下载免费PDF全文

Kiran Hina  Mike Hedley  Marta Camps‐Arbestain  James Hanly 《洁净——土壤、空气、水》2015,43(1):86-91

  相似文献   

Thermolysis Product Distribution of Solid Waste Obtained From Olive Oil Production     

Ebru Mehmetli  Özgür Dogan  Mustafa Tiris  Nilgün Ciliz Kiran  Georg Matuschek 《洁净——土壤、空气、水》2008,36(3):315-319

  相似文献   

Producing nature and making the state: Ordenamiento territorial in the Pacific lowlands of Colombia     

Kiran Asher 《Geoforum》2009,40(3):292-302

In this paper, we explore how ordenamiento territorial, a territorial zoning policy in the 1991 Colombian Constitution remakes nature and helps constitute the state in the “economically backward” but “biodiversity rich” Pacific lowlands region. We draw on Gramscian insights on hegemony and the importance of conjunctures to trace how changes in the new Constitution and global biogeopolitics reconfigure nature and state power through the mandates of sustainable development, economic growth, and the conservation of biological and cultural diversity. Finally, we contribute to the literature on political ecology by showing how the political power of the state, nature, and capital are interwoven materially and symbolically in complex and contradictory ways.  相似文献