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Regeneration process of Antarctic moss Ceratodon purpureus under different PAR conditions
The 15th Symposium on Polar Science/Ordinary sessions [OB] Polar biology, Wed. 4 Dec. / Entrance Hall (1st floor), National Institute of Polar Researchconference outpu
Derivation of sea ice thickness based on sea ice history using satellite data
The 15th Symposium on Polar Science/Ordinary sessions [OM] Polar meteorology and glaciology, Tue. 3 Dec. / 2F Auditorium, National Institute of Polar Researchconference outpu
A new methodology to estimate freshwater content: weekly climatology and interannual anomalies in Baffin Bay and the Labrador Shelf
The 15th Symposium on Polar Science/Ordinary sessions [OM] Polar meteorology and glaciology, Tue. 3 Dec. / 2F Auditorium, National Institute of Polar Researchconference outpu
Impacts of the snow–hydrological processes on near-surface temperature variability over the Eurasian continent
The 15th Symposium on Polar Science/Ordinary sessions [OM] Polar meteorology and glaciology, Tue. 3 Dec. / 2F Auditorium, National Institute of Polar Researchconference outpu
Variation of carbonate chemistry for brine in the Arctic sea ice by mixing with the ice/snow meltwater during melting season
The 15th Symposium on Polar Science/Ordinary sessions [OM] Polar meteorology and glaciology, Tue. 3 Dec. / Entrance Hall (1st floor), National Institute of Polar Researchconference outpu
Coordinated Radar and HYFLITS Balloon Observations of Atmospheric Turbulence at Syowa Station
The 15th Symposium on Polar Science/Ordinary sessions [OS] Space and upper atmospheric sciences, Wed. 4 Dec. / 3F Conference room, The Institute of Statistical Mathematicsconference outpu
Statistical Study of Coincident Observations of Stratospheric Concentric Gravity Waves and Concentric Traveling Ionospheric Disturbances over the Continental U.S. in 2022
The 15th Symposium on Polar Science/Ordinary sessions [OS] Space and upper atmospheric sciences, Wed. 4 Dec. / 3F Conference room, The Institute of Statistical Mathematicsconference outpu
Contribution of cryoconite holes in the supraglacial discharge of bioavailable iron in Larsemann Hills, East Antarctica
Supraglacial discharge of limiting micronutrients such as iron (Fe) into high-nutrient low-chlorophyll (HNLC) regions like the Southern Ocean has recently drawn global attention. In this study, we aim to understand the contribution of cryoconite holes (comprising a meltwater column with an underlying layer of sediment) to the discharge of Fe through the glacier runoff. Cryoconite hole meltwater collected from the Larsemann Hills, East Antarctica showed a higher concentration of dissolved Fe (dFe: 71.2 μgL−1) and total Fe extractable from suspended sediments (exFe: 362.1 μgL−1) than in the adjacent streams (dFe: 30.5 μgL−1; exFe: 21.2 μgL−1) and melt pools (dFe: 42.3 μgL−1; exFe: 5.8 μgL−1). Predictive pathways (using PICRUSt2) show that cryoconite hole bacterial communities could acquire Fe and other trace elements using different mechanisms, such as the biosynthesis of siderophores, and transport proteins, therefore influencing the trace metal chemistry in these and other environments that drain cryoconite hole contents. Estimated discharge of dFe (11.4 kg km−2 a−1) and exFe (57.9 kg km−2 a−1) within cryoconite holes are 2 and 17 times higher, respectively than the discharge from the adjacent supraglacial streams, indicating that cryoconite holes are an important source of potentially bioavailable Fe to the HNLC region.journal articl
極域における大気電場と超高層大気データの比較による全地球電気回路研究の新展開
極域データサイエンスに関する研究集会II
日時:2024年2月26日(月)13:00〜18:00, 2月27日(火)09:30〜12:00
場所:情報・システム研究機構データサイエンス共同利用基盤施設DS棟1F(大会議室H108),オンライン
主催:情報・システム研究機構データサイエンス共同利用基盤施設極域環境データサイエンスセンターconference objec
極域データ活動の国際連携:最近の動向
極域データサイエンスに関する研究集会II
日時:2024年2月26日(月)13:00〜18:00, 2月27日(火)09:30〜12:00
場所:情報・システム研究機構データサイエンス共同利用基盤施設DS棟1F(大会議室H108),オンライン
主催:情報・システム研究機構データサイエンス共同利用基盤施設極域環境データサイエンスセンターconference objec