Takeshi Nakatsuka
Dados Biográficos
| ID | 3445351 |
|---|---|
| NOME | Takeshi Nakatsuka |
| PRENOMES | Takeshi |
| SOBRENOME | Nakatsuka |
| ASSINATURA | NAKATSUKA T |
| AFILIAÇÕES | Nagoya University |
| ORCID | 0000-0001-8855-4793 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 14 |
| TOTAL DE CITAÇÕES | 3 |
| TOTAL COMO AUTOR | 14 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1995 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 1 |
What Controls the Summer Climate in Japan?
Recently, flood and drought disasters have been rapidly increasing due to global warming. In order to accurately predict changes in the water cycle, it is necessary to understand its multidecadal variability in nature through collaborations in the fields of meteorology and paleoclimatology. During the last decade, the summer climate in central Japan over the past 2600 years has been successfully reconstructed using the tree-ring cellulose oxygen …
A prehistoric Japanese building constructed with wooden pillars that have an age range spanning 700 years
A 1179-yr (417–1595 CE) tree-ring oxygen isotope chronology for northern Japan validated using the 774–775 CE radiocarbon spike
We present an annual-resolution, millennium-long tree-ring chronology for northern Japan. The chronology is based on 5309 measurements of tree-ring δ 18 O from 37 samples of Hiba arbor-vitae ( Thujopsis dolabrata var. hondae ). Although the exact geographical origin of 27 of the samples is unknown because they were extracted from excavated archaeological material, pattern matching of the tree-ring δ 18 O variations was robust among all 37 samples…
Radiocarbon Dating of Tree Rings From the Beginning and End of the Yayoi Period, Japan
We have conducted radiocarbon ( 14 C) dating of Japanese tree rings from 1053 to 921 BCE and 41 BCE to 130 CE. Dating was also performed using oxygen isotope dendrochronology to investigate subtle structures of the calibration curve corresponding to the beginning and the end of the Yayoi period in Japan. These two results followed IntCal20, which included the 14 C ages of two Japan-sourced trees. The findings suggest that dating of specimens obta…
A Wiggle-Matched 297-Yr Tree-Ring Oxygen Isotope Record From Thailand
Regional offsets from Northern Hemisphere radiocarbon ( 14 C) calibration curves are widely recognized for monsoon Asia and often hinder accurate 14 C dating. In this paper, we explore the possible linkage between summer monsoon intensity and 14 C offsets using tree-ring δ 18 O and 14 C data from Thailand. We developed a 297-yr floating tree-ring δ 18 O chronology comprising seven teak log-coffin samples from the Ban Rai rock shelter site, northw…
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
Tree ring oxygen isotope dating of wood recovered from a canal in the ancient capital of Japan
Trees growing in the lowlands of Japan are not climatically stressed; consequently, ring-width patterns are weakly correlated between different trees. Therefore, dendrochronological studies in Japan based on ring widths rely largely on climatically stressed conifers growing in mountainous regions and/or at higher latitudes. In contrast, oxygen isotope ratios (δ18O) are well-matched between trees, irrespective of climatic stress, indicating that t…
Onset and maturation of Asian summer monsoon precipitation reconstructed from intra-annual tree-ring oxygen isotopes from the southeastern Tibetan Plateau
We present a long-term seasonal tree ring cellulose oxygen isotope (δ 18 O c ) time series created by analyzing four segments (S1, S2, S3, and S4) per year during the period of 1951–2009 from southeastern Tibetan Plateau. This intraseasonal δ 18 O c reveals the onset and mature phase of the summer monsoon precipitation in this region. Analysis indicates that the δ 18 O c of S1 has the strongest correlation with precipitation during the regional m…
Assessment of sungkai tree-ring δ18O proxy for paleoclimate reconstruction in western Java, Indonesia
Hydroclimate reconstruction in central Japan over the past four centuries from tree-ring cellulose δ 18 O
Fine Structure and Reproducibility of Radiocarbon Ages of Middle to Early Modern Japanese Tree Rings
This study carried out accelerator mass spectrometry radiocarbon (AMS 14 C) measurement of Japanese tree rings dating from the middle to early modern eras to investigate calibration curve fine structure. Tree-ring ages were determined by dendrochronology or δ 18 O chronology for Japanese trees. 14 C ages from the 15th century to the middle of the 17th century followed the IntCal13 calibration curve within measurement error. Different patterns of …
Relationship between early summer precipitation in Japan and the El Niño-Southern and Pacific Decadal Oscillations over the past 400 years
Continental-scale temperature variability during the past two millennia
AMS 14 C Measurements of Dissolved Inorganic Carbon in Pore Waters from a Deep-Sea “Cold Seep” Giant Clam Community Off Hatsushima Island, Sagami Bay, Japan
We collected pore waters using an in situ pore water-squeezer for a submersible Shinkai 2000 at six depths beneath the sediment surface within a deep-sea “cold seep” giant clam community off Hatsushima Island, Sagami Bay, Japan. A box core sample was also collected ca. 4.5 km east of the community and pore waters were separated. Dissolved inorganic carbon (DIC) was extracted and purified in a vacuum line and 14 C concentration was determined with…
Fine Structure and Reproducibility of Radiocarbon Ages of Middle to Early Modern Japanese Tree Rings
This study carried out accelerator mass spectrometry radiocarbon (AMS 14 C) measurement of Japanese tree rings dating from the middle to early modern eras to investigate calibration curve fine structure. Tree-ring ages were determined by dendrochronology or δ 18 O chronology for Japanese trees. 14 C ages from the 15th century to the middle of the 17th century followed the IntCal13 calibration curve within measurement error. Different patterns of …
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
AMS 14 C Measurements of Dissolved Inorganic Carbon in Pore Waters from a Deep-Sea “Cold Seep” Giant Clam Community Off Hatsushima Island, Sagami Bay, Japan
We collected pore waters using an in situ pore water-squeezer for a submersible Shinkai 2000 at six depths beneath the sediment surface within a deep-sea “cold seep” giant clam community off Hatsushima Island, Sagami Bay, Japan. A box core sample was also collected ca. 4.5 km east of the community and pore waters were separated. Dissolved inorganic carbon (DIC) was extracted and purified in a vacuum line and 14 C concentration was determined with…
Continental-scale temperature variability during the past two millennia
Relationship between early summer precipitation in Japan and the El Niño-Southern and Pacific Decadal Oscillations over the past 400 years
Assessment of sungkai tree-ring δ18O proxy for paleoclimate reconstruction in western Java, Indonesia
Hydroclimate reconstruction in central Japan over the past four centuries from tree-ring cellulose δ 18 O
Fine Structure and Reproducibility of Radiocarbon Ages of Middle to Early Modern Japanese Tree Rings
This study carried out accelerator mass spectrometry radiocarbon (AMS 14 C) measurement of Japanese tree rings dating from the middle to early modern eras to investigate calibration curve fine structure. Tree-ring ages were determined by dendrochronology or δ 18 O chronology for Japanese trees. 14 C ages from the 15th century to the middle of the 17th century followed the IntCal13 calibration curve within measurement error. Different patterns of …
Onset and maturation of Asian summer monsoon precipitation reconstructed from intra-annual tree-ring oxygen isotopes from the southeastern Tibetan Plateau
We present a long-term seasonal tree ring cellulose oxygen isotope (δ 18 O c ) time series created by analyzing four segments (S1, S2, S3, and S4) per year during the period of 1951–2009 from southeastern Tibetan Plateau. This intraseasonal δ 18 O c reveals the onset and mature phase of the summer monsoon precipitation in this region. Analysis indicates that the δ 18 O c of S1 has the strongest correlation with precipitation during the regional m…
Tree ring oxygen isotope dating of wood recovered from a canal in the ancient capital of Japan
Trees growing in the lowlands of Japan are not climatically stressed; consequently, ring-width patterns are weakly correlated between different trees. Therefore, dendrochronological studies in Japan based on ring widths rely largely on climatically stressed conifers growing in mountainous regions and/or at higher latitudes. In contrast, oxygen isotope ratios (δ18O) are well-matched between trees, irrespective of climatic stress, indicating that t…
A Wiggle-Matched 297-Yr Tree-Ring Oxygen Isotope Record From Thailand
Regional offsets from Northern Hemisphere radiocarbon ( 14 C) calibration curves are widely recognized for monsoon Asia and often hinder accurate 14 C dating. In this paper, we explore the possible linkage between summer monsoon intensity and 14 C offsets using tree-ring δ 18 O and 14 C data from Thailand. We developed a 297-yr floating tree-ring δ 18 O chronology comprising seven teak log-coffin samples from the Ban Rai rock shelter site, northw…
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
A 1179-yr (417–1595 CE) tree-ring oxygen isotope chronology for northern Japan validated using the 774–775 CE radiocarbon spike
We present an annual-resolution, millennium-long tree-ring chronology for northern Japan. The chronology is based on 5309 measurements of tree-ring δ 18 O from 37 samples of Hiba arbor-vitae ( Thujopsis dolabrata var. hondae ). Although the exact geographical origin of 27 of the samples is unknown because they were extracted from excavated archaeological material, pattern matching of the tree-ring δ 18 O variations was robust among all 37 samples…
Radiocarbon Dating of Tree Rings From the Beginning and End of the Yayoi Period, Japan
We have conducted radiocarbon ( 14 C) dating of Japanese tree rings from 1053 to 921 BCE and 41 BCE to 130 CE. Dating was also performed using oxygen isotope dendrochronology to investigate subtle structures of the calibration curve corresponding to the beginning and the end of the Yayoi period in Japan. These two results followed IntCal20, which included the 14 C ages of two Japan-sourced trees. The findings suggest that dating of specimens obta…
What Controls the Summer Climate in Japan?
Recently, flood and drought disasters have been rapidly increasing due to global warming. In order to accurately predict changes in the water cycle, it is necessary to understand its multidecadal variability in nature through collaborations in the fields of meteorology and paleoclimatology. During the last decade, the summer climate in central Japan over the past 2600 years has been successfully reconstructed using the tree-ring cellulose oxygen …
A prehistoric Japanese building constructed with wooden pillars that have an age range spanning 700 years
Tree-ring climate responses (12 obras) · Dendrochronology (10 obras) · Geography (10 obras) · Geology (10 obras) · Geology and Paleoclimatology Research (10 obras) · Isotopes of oxygen (7 obras) · Paleontology (7 obras) · Plant Water Relations and Carbon Dynamics (7 obras) · Climatology (6 obras) · Archaeology (5 obras)