Geophysical Research Letters mein prakaashit ek haaliya adhyayan ne prithvi ke rotational axis par bhoojal nishkarshan ke mahatvapoorn prabhaav aur vaishvik samudr-star vrddhi mein isake yogadaan par prakaash daala hai.
· Researchers ne prthvee ke rotational pole ke drift aur paanee kee gati mein parivartanon ka vishleshan kiya – pahale, keval barf kee chaadaron aur glaciers ko dhyaan mein rakhakar aur phir vibhinn bhoojal punarvitaran paridrshyon ko jodakar.-Geophysical Research Letters
prthvee ke rotation ko prabhaavit karane vaale kaarak kya hain?
polar motion mein yogadaan dene vaale kaarakon mein mausam, mausamee parivartan, molten core aur shaktishaalee toophaan shaamil hain.
polar motion prithvi kee crust ke saapeksh usake rotation axis kee gati hai, jo prthvee ke rotational axis par prthvee kee pratyek parat ke bhautik vinimay aur mass distribution ke prabhaav ko darshaatee hai.
aam taur par, dhruveey gati jalamandal, vaayumandal, mahaasaagaron ya thos prthvee mein parivartan ke kaaran hotee hai.
earth ke geographic north aur south poles ve hain jahaan isakee dhuree satah ko kaatatee hai; haalaanki, ve nishchit nahin hain. prthvee ke dravyamaan vitaran mein bhinnata ke kaaran axis aur isalie poles mein utaar-chadhaav hota hai.
adhyayan ke mukhy nishkarsh kya hain?
prthvee ka jhukaav:
o groundwater pumping ne akele 1993 aur 2010 ke beech prthvee ko lagabhag 80 cm east kee trf jhuka diya hai.
o poore grah par prasaarit paanee yah nirdhaarit karata hai ki mass kaise distribute kiya jaata hai.
• 1993 aur 2010 ke beech, logon ne 2,150 gigatons groundwater pump kiya, ya samudr ke star mein 6 mm se adhik kee vriddhi huee.
Polar drift par prabhaav:
o atyadhik bhoojal pamping ke kaaran 1993 se 2010 ke beech prthvee ka dhruv prati varsh 4.36 cm kee dar se khisak gaya hai, jisase yah dhruveey gati par sabase adhik prabhaav daalane vaala jalavaayu-sambandhee kaarak ban gaya hai.
o mid-latitudes se paanee ka punarvitaran dhruveey bahaav ko mahatvapoorn roop se prabhaavit karata hai; isalie, punarvitaran ka sthaan dhruveey bahaav ko nirdhaarit karata hai.
• adhyayan avadhi ke dauraan, sabase adhik punarvitaran western North America aur northwestern bhaarat mein hua – donon mid-latitudes par sthit the.
samudr ke star mein vrddhi par bhoojal pumping ka prabhaav:
o mentioned period ke dauraan bhoojal pumping ne samudr ke star mein 6.24 mm kee vrddhi mein yogadaan diya.
o mid latitude areas, jaise uttar pashchim bhaarat aur pashchimee uttaree amerika se pamping ka prthvee kee dhuree ke bahaav par sabase adhik prabhaav padata hai.
Polar drift ka prabhaav kya hai:
o rotational pole aam taur par lagabhag ek varsh ke bheetar kaee meetar tak badal jaata hai, isalie bhoojal pamping ke kaaran hone vaale parivartanon se mausam badalane ka jokhim nahin hota hai.
o lekin geologic time scales par, polar drift ka jalavaayu par prabhaav pad sakata hai.
Recommendations:
o bhoojal kee kamee kee dar ko dheema karane ke prayaas, vishesh roop se un sanvedanasheel kshetron mein, saiddhaantik roop se bahaav mein parivartan ko badal sakate hain, lekin keval tabhee jab is tarah ke sanrakshan drshtikon dashakon tak kaayam rahen.
Is study ka mahatv kya hai?
findings global scale par bhoojal kee kamee aur isake parinaamon ko sambodhit karane kee aavashyakata par jor dete hain.
yah khoj prthvee kee rotational dynamics aur badhate samudr ke star ka vishleshan karane mein bhoojal kee kamee ko ek mahatvapoorn kaarak maanane ke mahatv ko rekhaankit karatee hai.
Mentioned period ke dauraan bhoojal pumping ne samudr ke star mein kitne mm kee vrddhi mein yogadaan diya?
Geophysical Research Letters mein prakaashit ek haaliya adhyayan ke pramukh nishkarsh kya hai?
