Linganisha mbinu
Pitia mbinu ulizochagua bega kwa bega; safu zinazotofautiana zinaangaziwa.
| Isotope Ratio Mass Spectrometry× | Indeksi Sanifu ya mvua× | |
|---|---|---|
| Nyanja | Jiofizikia | Jiofizikia |
| Familia | Process / pipeline | Process / pipeline |
| Mwaka wa asili≠ | 1994 | 1993 |
| Mwanzilishi≠ | Thomas Coplen and others | Thomas McKee, Neil Doesken, and John Kleist |
| Aina≠ | Measurement of stable and radiogenic isotope ratios | Probabilistic drought indicator |
| Chanzo asilia≠ | Coplen, T. B. (1994). Reporting of stable hydrogen, carbon, and oxygen isotopic abundances. Pure and Applied Chemistry, 66(2), 273-276. DOI ↗ | McKee, T. B., Doesken, N. J., & Kleist, J. (1993). The relationship of drought frequency and duration to time scales. Proceedings of the Eighth Conference on Applied Climatology, 179-184. link ↗ |
| Majina mbadala | IRMS | SPI |
| Zinazohusiana | 3 | 3 |
| Muhtasari≠ | Isotope Ratio Mass Spectrometry (IRMS) is an analytical technique that measures the relative abundance of stable isotopes (H, C, N, O, S) and some radiogenic isotopes (e.g., ⁸⁷Sr/⁸⁶Sr) in samples with high precision. Standardized by Coplen and colleagues, IRMS enables paleoclimate reconstruction, source tracing (diet, water origin), geochemical fingerprinting, and age dating through radiogenic isotopes. | The Standardized Precipitation Index (SPI) is a climate index that quantifies precipitation anomalies relative to historical norms, standardized to account for differences in precipitation climatology across regions. Introduced by McKee, Doesken, and Kleist in 1993, SPI has become a primary tool for drought detection and characterization, adopted by meteorological agencies worldwide for operational drought monitoring and early warning systems. |
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