scholarly journals Influence of cyclonic disturbances from sea on rainfall over Eastern Ghats in Andhra Pradesh

MAUSAM ◽  
2022 ◽  
Vol 44 (2) ◽  
pp. 153-162
Author(s):  
C. POORNACHANDRA RAO ◽  
P.V. Rama RAO

Using data of 84 Years, the influence of depressions and cyclonic storms on the rainfall over Eastern Ghats in Andhra Pradesh is studied. The portions of the Ghats, which receive heavy rains due to a depression or cyclonic storm are identified and the rainfall distribution in corresponding months is studied.    The results show that the depressions/cyclonic storms crossing not only the coastal parts of AndhraPradesh but also those of south Orissa north and TamilNadu can cause heavy rain over the Ghats in Andhra Pradesh.

MAUSAM ◽  
2021 ◽  
Vol 51 (3) ◽  
pp. 225-230
Author(s):  
A. MUTHUCHAMI

Using 1891-1997 data of cyclonic storm positions an attempt is made to study probability of a storm located at about 500 kms in the Bay from the coast to strike or threaten a given station or a given state. It is found that probable location of formation of storms affecting Tamil Nadu coast is 9.3° N / 85.0° E in the month of October and November, for the storms affecting Andhra Pradesh is around 11.5° N/87. 0° E in May and October and for the storms affecting Orissa is 16. 0° N / 89. 5° E in May and October. The storms affecting West Bengal have their origin around 14.8° N / 88. 6° E in May and 17.0° N / 88. 8° E in October. It is also found that the track of a given storm during post monsoon months (October-December) depends on the track of the earlier storm formed in the same season over Bay. Mean direction of storm over the Bay of Bengal is estimated based on the mean direction of the storm formed earlier in the Bay by a regression equation.


MAUSAM ◽  
2021 ◽  
Vol 51 (1) ◽  
pp. 17-24
Author(s):  
G. S. GANESAN ◽  
A. MUTHUCHAMI ◽  
A. S. PONNUSWAMY

In this paper an attempt is made to study the characteristics of Heavy Rainfall (HR) and Very Heavy Rainfall (VHR) over Chennai in the North East Monsoon month of October, November and December and the period considered is 1964 to 19%. It is observed that it is mainly the duration which determines whether rainfall would be heavy or very heavy. Defining a system as Depression or Cyclonic Storm or Severe Cyclonic Storm in the Bay of Bengal, the mean rainfall in a System-affected day is 1.5 times that of Non-system-affected day in October and November. No striking differences could be found in intensity and duration characteristics of rainfall between system- affected days and non-system affected days. Even if system induced. heavy rainfall does not occur other thing being normal, the total rainfall of this season can continue to be normal.


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
A.K. Asthana ◽  
Priyanshu Srivastava

Eastern Ghats are discontinuous hill ranges passing through Orissa, Andhra Pradesh and Tamil Nadu located between 11⁰30' & 22⁰N latitude and 76⁰50' & 86⁰30'E longitude. Bryophyte flora of this region is still very less explored. During a recent field exploration to Eastern Ghats region of Tamil Nadu three moss taxa viz. Solmsiella biseriata (Austin) Steere, Aulacopilum glaucam Wilson and Groutiella tomentosa (Hornsch) Wijk & Marg. have been identified as new additions to moss flora of Eastern Ghats. The present study provides the information regarding extended range of distribution of these taxa in India and a compensable account of morpho-taxonomical details with earlier described taxa from other bryogeographical zones.


2011 ◽  
Vol 22 (4) ◽  
pp. 491-500 ◽  
Author(s):  
C. Sudhakar Reddy ◽  
Shilpa Babar ◽  
Giriraj Amarnath ◽  
Chiranjibi Pattanaik

Author(s):  
Darsi Phebe Sarah Koti Ratnam

The aim of the present study was to investigate the presence of phyto chemical, antimicrobial activities and micro propagation of the selected medicinal plants i.e. Rauwolfia serpentina, Adhatoda vasica and Alstonia scholaris. These endemic plants belong to Apocynaceae and were collected from higher altitudes of Eastern Ghats, Lambasingi forest region, Andhra Pradesh India. To determine the total phenolic and flavonoid contents, Soxhlet apparatus was used for this study. Solvents used were in this study are water, ethyl acetate, chloroform and methanol. Among them the solvent methanolic extract of Rauwolfia serpentina (57.15±1.2) and Alstonia scholaris (55.06±0.7) showed high content of saponins. The test microrganism which were studied against the efficacy of selected medicinal plant extracts were, two bacterial strians i.e., Streptococcus pyogenes, Pseudomonas aeruginosa and two fungal strains Aspergillus niger and Vibrio cholera. The antimicrobial activity was proved that the methanol extracts was found to be maximum antimicrobial growth inhibition. The simple and effective protocol was developed to propagate the Rauwolfia plant from nodal explants. Maximum no of 95% plantlets regenerated successfully. These propagated plantlets were hardened to survive in vivo conditions.


2021 ◽  
pp. 097206342110524
Author(s):  
Srividhya Samakya V. ◽  
G. Palanisamy

The study aims to understand the traditional healthcare management of the newborns of the Parengi Porja tribe. The Parengi Porja tribe is a Particularly Vulnerable Tribal Group (PVTG) that inhabits the Eastern Ghats, which is a continuous high hilly region of Visakhapatnam district, Andhra Pradesh, India. The members of this tribe strongly believe that the earliest weeks of a newborn’s life is the time for the greatest probability of death and disability. To avoid these misfortunes, they strictly follow the traditional healthcare regimen for newborns, which has significant socio-cultural importance. For this study, 105 neonates were purposively selected, and their mothers were interviewed for data collection. The research data were analysed by qualitative methods that included participant observation, in-depth interviews and focus group discussion. The collected data were repeatedly cross-checked with other elderly female members like grandmothers, and sutranimaizi (traditional birth attendant [TBA]) through interviews to strengthen the efficiency and authenticity of the data. The findings of the study show that this tribal population has its understanding of the management of neonatal health, which is socio-culturally ingrained, sanctioned and transmitted through generations.


2015 ◽  
Vol 3 (2) ◽  
pp. 63-71
Author(s):  
Harinath Palem ◽  
◽  
Suryanarayana Kanike ◽  
Venkata Reddy ◽  
Venkata Ramana Sri Purushottam ◽  
...  

2016 ◽  
Vol 8 (5) ◽  
pp. 8818 ◽  
Author(s):  
Vikram Aditya ◽  
Thyagarajan Ganesh

The genus Prionailurus consists of forest dwelling spotted cats ranging across most of India (Sunquist and Sunquist 2002, Menon 2003). Few studies have been done on their presence and distribution across the Eastern Ghats. The present note reports the first camera trap records of the Leopard Cat Prionailurus benghalensis Kerr, 1792 and Rusty Spotted Cat, Prionailurus rubiginosus Geoffroy Saint-Hilaire, 1831 from the Papikonda National Park, situated in the northern Eastern Ghats of Andhra Pradesh. 


2013 ◽  
Vol 10 (2) ◽  
pp. 2767-2790 ◽  
Author(s):  
S. Nagao ◽  
M. Kanamori ◽  
S. Ochiai ◽  
S. Tomihara ◽  
K. Fukushi ◽  
...  

Abstract. Effects of a heavy rain event on radiocesium export were studied at stations on the Natsui River and the Same River in Fukushima Prefecture, Japan after Typhoon Roke during 21–22 September 2011, six months after the Fukushima Daiichi Nuclear Power Plant accident. Radioactivity of 134Cs and 137Cs in river waters was 0.011–0.098 Bq L−1 at normal flow conditions during July–September in 2011, but it increased to 0.85 Bq L−1 in high flow conditions by heavy rains occurring with the typhoon. The particulate fractions of 134Cs and 137Cs were 21–56% in the normal flow condition, but were close to 100% after the typhoon. These results indicate that the pulse input of radiocesium associated with suspended particles from land to coastal ocean occurred by the heavy rain event. Export flux of 134Cs and 137Cs by the heavy rain accounts for 30–50% of annual radiocesium flux in 2011. Results show that rain events are one factor controlling the transport and dispersion of radiocesium in river watersheds and coastal marine environments.


Author(s):  
S. A. Nadaf ◽  
A. R. Bora

Coffee growing areas in Andhra Pradesh and Orissa (non-traditional area - NTA) are characterized by undulating topography with terraced slopes having narrow valleys with scattered coffee farms across the elevation of the Eastern Ghats of Vishakhapatnam (Andhra Pradesh) and Koraput (Orissa) districts. Under this situation plant available nutrients will become non-available and the nutrients are stored in several pools as inorganic and organic forms in soil exchange complex are very much essential for coffee plants for its growth and development. Hence, a study was conducted to know the soil nutrient status of coffee growing region of NTA. A total of 693 surface soil samples were collected at depth of 22cm randomly from each coffee growing mandals of NTA and assessed the nutrient status (soil pH, OC, available P and K) at Regional Coffee Research Station, Narsipatnam. Results of the soil test results indicated that most of the Arabica coffee soils of NTA are acidic in reaction (72 %) and soil pH > 6.0 in these soils was 28 % in the tested soils. Plant available phosphorous (P) in the soil is low with 33 % soils and 46 % of the soils are medium in range. However, only 21 % of the soils tested are high in available phosphorous content in these soils. The majority of the soils of this region are high in available potassium about 54 % and 31 % of the soils are medium in range but only 15 % of the soils are low in available K status. Coffee soils of NTA are rich in organic carbon status and almost 47 %. 33 % of the tested soils are medium in range but 19 % of soils were low in organic carbon status. Soils are slightly acidic in reaction and were rich in organic carbon and available potassium status.


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