Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Eastern Arabian Sea Stack
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2026
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| _version_ | 1867169493758771200 |
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| author | Singh, Dharmendra Pratap |
| author_facet | Singh, Dharmendra Pratap |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The new δ¹⁵N record of sediment core SSD004_GC11 is combined with published regional datasets to produce a basin-wide Arabian Sea denitrification stack. Spectral and cross-wavelet analyses reveal dominant orbital-scale variability, with stronger obliquity influence in the southern basin and precession dominance in northern records. Coherent variability between δ¹⁵N records and atmospheric N₂O concentrations highlights orbital forcing as a key driver of long-term nitrogen cycling and greenhouse gas variability. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_993908 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Eastern Arabian Sea Stack Singh, Dharmendra Pratap 355-U1456; AGE; Arabian Sea; calculated, 1 sigma; COMPCORE; Composite Core; d15N; Exp355; Indian Ocean; Joides Resolution; Marion Dufresne (1972); MD10; MD76-131; ME33-EAST; OSIRIS II; PC; Piston corer; SEDCO; Sedimentary geochemistry; Sediment corer; SK117_GC_08; SK126-GC39; Stack; Stacked; TN; δ15N, bulk sediment; δ15N, standard deviation The new δ¹⁵N record of sediment core SSD004_GC11 is combined with published regional datasets to produce a basin-wide Arabian Sea denitrification stack. Spectral and cross-wavelet analyses reveal dominant orbital-scale variability, with stronger obliquity influence in the southern basin and precession dominance in northern records. Coherent variability between δ¹⁵N records and atmospheric N₂O concentrations highlights orbital forcing as a key driver of long-term nitrogen cycling and greenhouse gas variability. |
| title | Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Eastern Arabian Sea Stack |
| topic | 355-U1456; AGE; Arabian Sea; calculated, 1 sigma; COMPCORE; Composite Core; d15N; Exp355; Indian Ocean; Joides Resolution; Marion Dufresne (1972); MD10; MD76-131; ME33-EAST; OSIRIS II; PC; Piston corer; SEDCO; Sedimentary geochemistry; Sediment corer; SK117_GC_08; SK126-GC39; Stack; Stacked; TN; δ15N, bulk sediment; δ15N, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.993908 |