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Pinder Valley, Kumaon Higher Himalaya of India
Reference
Phadtare, N.R. and Pant, R.K. 2006. A century-scale pollen record of vegetation and climate history during the past 3500 years in the Pinder Valley, Kumaon Higher Himalaya, India. Journal of the Geological Society of India 68: 495-506.

Description
Based on a study of the pollen and organic matter content and magnetic susceptibility of radiocarbon-dated samples from a peat deposit in the Kumaon Higher Himalaya of India (303'N, 7056'E), the authors developed a 3500-year palaeoclimate record of the Late Holocene. In describing this record they say that "with an abrupt rise in temperature as well as moisture at ~AD 400, the climate suddenly turned warm and moist and remained so until ~AD 1260," which time interval, according to them, is "generally referred to as the Medieval Warm Period in the Northern Hemisphere."