The relationship between the isotopic content of precipitation and the precipitation amount in tropical regions

Kurita, Naoyuki; Ichiyanagi, Kimpei; Matsumoto, Jun; Yamanaka, Manabu D.; Ohata, Tetsuo

doi:10.1016/j.gexplo.2009.03.002

Cited by 181 publications

(171 citation statements)

References 25 publications

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“…The origins of the water were tracked by CMA using an ICM with a tagged-water transport scheme (Yoshimura et al 2004 Op at Denpasar is −3.15‰, and depletion occurs during phases 2−5 of the MJO. Although the geographic positions of Bukittinggi and Jambi are close, they show different isotopic variability, which is attributed to the effect of elevation, as described in Kurita et al (2009 Op are less than the annual average. The underestimated values might have been caused by uncertainty in the evaporation isotopic ratio, which is the isotopic value of water vapor from the evaporation process, and also by local-scale processes that are not included in the simulation (Yoshimura et al 2003 Op at all stations (in phases 3−5) is associated with the location of the convective activity over the IMC.…”

Section: Data and Study Methodsmentioning

confidence: 93%

“…The observation period was 2001−2006, except for Denpasar, Makasar, and Manado where data were available until 2010. Isotopic content measurement described in Kurita et al (2009).…”

Section: Data and Study Methodsmentioning

confidence: 99%

“…Hidayat and Kizu (2010) stated that the MJO enhanced positive precipitation anomaly over the IMC during the wet phase (MJO phases 4 and 5). Furthermore, Kurita et al (2009) and Suwarman et al (2013) have detected the amount effect at IMC observation stations. The above finding supports the assertion that depletion of δ 18 Op is associated with increased precipitation related to the MJO.…”

Section: Data and Study Methodsmentioning

confidence: 99%

“…There have been a few studies of the isotopes of precipitation and their relation to the weather and climate over the region of the Asian monsoon (e.g., Yoshimura et al 2003Yoshimura et al , 2004Ichiyanagi et al 2005) and the Indonesian MC (IMC) (Kurita et al 2009;Moerman et al 2013;Suwarman et al 2013;Permana et al 2016). Fudeyasu et al (2011) showed that large-scale moisture transport influenced isotopic variability over Sumatra.…”

Section: Introductionmentioning

confidence: 99%

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Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Belgaman

Ichiyanagi

Tanoue

et al. 2016

SOLA

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Intraseasonal variability of precipitation over the Indonesian Maritime Continent (IMC) is related mainly to the Madden-Julian oscillation (MJO). The MJO enhances and suppresses precipitation around the IMC according to its phase. This study examined the relationship between the MJO and the stable isotope of the precipitation over the IMC. Observations and simulation data from an isotope circulation model and colored moisture analysis (ICM/CMA) were used. Temporal analyses of the observed and simulated data showed that an active MJO stage, associated with a positive precipitation anomaly over the IMC, was correlated with the depletion of δ 18

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Section: Data and Study Methodsmentioning

confidence: 93%

“…The observation period was 2001−2006, except for Denpasar, Makasar, and Manado where data were available until 2010. Isotopic content measurement described in Kurita et al (2009).…”

Section: Data and Study Methodsmentioning

confidence: 99%

Section: Data and Study Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Belgaman

Ichiyanagi

Tanoue

et al. 2016

SOLA

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“…We have confirmed that a major river in West Jawa has a diurnal cycle (Sulistyowati et al 2014). The hydrologic cycle over the IMC has been revealed using isotopic analyses of sampled rain and land water (Kurita et al 2009;Fudeyasu et al 2011;Suwarman et al 2013Suwarman et al , 2017Belgaman et al 2016;Permana et al 2016). Furthermore, we know diurnal cycles occur also in the biosphere and humanosphere, which are also concentrated near the coastline.…”

Section: Local Rainfall As a Function Of Coastal Distancementioning

confidence: 99%

Maritime continent coastlines controlling Earth’s climate

Yamanaka

Ogino

et al. 2018

Prog Earth Planet Sci

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During the Monsoon Asian Hydro−Atmosphere Scientific Research and Prediction Initiative (MAHASRI; 2006-16), we carried out two projects over the Indonesian maritime continent (IMC), constructing the Hydrometeorological Array for Intraseasonal Variation−Monsoon Automonitoring (HARIMAU; 2005-10) radar network and setting up a prototype institute for climate studies, the Maritime Continent Center of Excellence (MCCOE; 2009-14). Here, we review the climatological features of the world's largest "regional" rainfall over the IMC studied in these projects. The fundamental mode of atmospheric variability over the IMC is the diurnal cycle generated along coastlines by land−sea temperature contrast: afternoon land becomes hotter than sea by clear-sky insolation before noon, with the opposite contrast before sunrise caused by evening rainfall-induced "sprinkler"-like land cooling (different from the extratropical infrared cooling on clear nights). Thus, unlike the extratropics, the diurnal cycle over the IMC is more important in the rainy season. The intraseasonal, seasonal to annual, and interannual climate variabilities appear as amplitude modulations of the diurnal cycle. For example, in Jawa and Bali the rainy season is the southern hemispheric summer, because land heating in the clear morning and water vapor transport by afternoon sea breeze is strongest in the season of maximum insolation. During El Niño, cooler sea water surrounding the IMC makes morning maritime convection and rainfall weaker than normal. Because the diurnal cycle is almost the only mechanism generating convective clouds systematically near the equator with little cyclone activity, the local annual rainfall amount in the tropics is a steeply decreasing function of coastal distance (e-folding scale 100-300 km), and regional annual rainfall is an increasing function of "coastline density" (coastal length/land area) measured at a horizontal resolution of 100 km. The coastline density effect explains why rainfall and latent heating over the IMC are twice the global mean for an area that makes up only 4% of the Earth's surface. The diurnal cycles appearing almost synchronously over the whole IMC generate teleconnections between the IMC convection and the global climate. Thus, high-resolution (<< 100 km; << 1 day) observations and models over the IMC are essential to improve both local disaster prevention and global climate prediction.

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Oxygen isotopes in tree rings record variation in precipitation δ¹⁸O and amount effects in the south of Mexico

et al. 2013

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[1] Natural archives of oxygen isotopes in precipitation may be used to study changes in the hydrological cycle in the tropics, but their interpretation is not straightforward. We studied to which degree tree rings of Mimosa acantholoba from southern Mexico record variation in isotopic composition of precipitation and which climatic processes influence oxygen isotopes in tree rings (δ18Otr). Interannual variation in δ18Otr was highly synchronized between trees and closely related to isotopic composition of rain measured at San Salvador, 710 km to the southwest. Correlations with δ13C, growth, or local climate variables (temperature, cloud cover, vapor pressure deficit (VPD)) were relatively low, indicating weak plant physiological influences. Interannual variation in δ18Otr correlated negatively with local rainfall amount and intensity. Correlations with the amount of precipitation extended along a 1000 km long stretch of the Pacific Central American coast, probably as a result of organized storm systems uniformly affecting rainfall in the region and its isotope signal; episodic heavy precipitation events, of which some are related to cyclones, deposit strongly 18O-depleted rain in the region and seem to have affected the δ18Otr signal. Large-scale controls on the isotope signature include variation in sea surface temperatures of tropical north Atlantic and Pacific Ocean. In conclusion, we show that δ18Otr of M. acantholoba can be used as a proxy for source water δ18O and that interannual variation in δ18Oprec is caused by a regional amount effect. This contrasts with δ18O signatures at continental sites where cumulative rainout processes dominate and thus provide a proxy for precipitation integrated over a much larger scale. Our results confirm that processes influencing climate-isotope relations differ between sites located, e.g., in the western Amazon versus coastal Mexico, and that tree ring isotope records can help in disentangling the processes influencing precipitation δ18O.

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The relationship between the isotopic content of precipitation and the precipitation amount in tropical regions

Cited by 181 publications

References 25 publications

Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Maritime continent coastlines controlling Earth’s climate

Oxygen isotopes in tree rings record variation in precipitation δ¹⁸O and amount effects in the south of Mexico

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The relationship between the isotopic content of precipitation and the precipitation amount in tropical regions

Cited by 181 publications

References 25 publications

Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Intraseasonal Variability of δ<sup>18</sup>O of Precipitation over the Indonesian Maritime Continent Related to the Madden–Julian Oscillation

Maritime continent coastlines controlling Earth’s climate

Oxygen isotopes in tree rings record variation in precipitation δ18O and amount effects in the south of Mexico

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Product

Resources

About

Oxygen isotopes in tree rings record variation in precipitation δ¹⁸O and amount effects in the south of Mexico