Cited by 36Paleontology and Stratigraphy of FossilsMarine and coastal ecosystemsGeology and Paleoclimatology Research

Opening Pandora's Box: The impact of open system modeling on interpretations of anoxia

Hotinski, Roberta M., Kump, Lee R., Najjar, Raymond G.·2000·Paleoceanography

Abstract

The geologic record preserves evidence that vast regions of ancient oceans were once anoxic, with oxygen levels too low to sustain animal life. Because anoxic conditions have been postulated to foster deposition of petroleum source rocks and have been implicated as a kill mechanism in extinction events, the genesis of such anoxia has been an area of intense study. Most previous models of ocean oxygen cycling proposed, however, have either been qualitative or used closed‐system approaches. We reexamine the question of anoxia in open‐system box models in order to test the applicability of closed‐system results over long timescales and find that open and closed‐system modeling results may differ significantly on both short and long timescales. We also compare a scenario with basinwide diffuse upwelling (a three‐box model) to a model with upwelling concentrated in the Southern Ocean (a four‐box model). While a three‐box modeling approach shows that only changes in high‐latitude convective mixing rate and character of deepwater sources are likely to cause anoxia, four‐box model experiments indicate that slowing of thermohaline circulation, a reduction in wind‐driven upwelling, and changes in high‐latitude export production may also cause dysoxia or anoxia in part of the deep ocean on long timescales. These results suggest that box models must capture the open‐system and vertically stratified nature of the ocean to allow meaningful interpretations of long‐lived episodes of anoxia.

Integrity signals

Registry

Crossref · 10.1029/1999pa000408

Cites

32 of 32 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The dynamical response of a closed system can be very different from that of an open system where there is a continual throughput.

    “The dynamical response of a closed system can be very different from that of an ''open'' system where there is a continual throughput (i.e., both sources and sinks of a dissolved species to the ocean) [Hotinski et al., 2000].”

Cites

Flagged first, then by citations

1 of the 33 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Hotinski, R. M., Kump, L. R., & Najjar, R. G.
Affiliations
Pennsylvania State University (US)
Venue
Paleoceanography
Published
2000-06
Volume
15
Issue
3
Pages
267-279
ISSN
  • 0883-8305 (ISSN-L)
  • 1944-9186
OpenAlex
W2092401146
Cited by
36
References
33
Citations by year
2024: 1 · 2022: 4 · 2019: 1 · 2017: 1 · 2015: 1 · 2013: 3
FWCI
4.31
Type
journal article
Language
en
Open access
closed
Locations
Paleoceanography (publishedVersion)
Funders
Pennsylvania Space Grant Consortium
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Geology and Paleoclimatology Research
Keywords
ocean anoxia, dysoxia, thermohaline circulation, wind-driven upwelling, Southern Ocean, export production, petroleum source rocks, mass extinction

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review