Fish stock assessment
Catch, effort and survey data are fitted in population models to estimate biomass and fishing mortality against reference points, with data-limited methods where records are short.
GCRI · Biodiversity Nexus
Ocean science provides the physics, chemistry and biology behind marine biodiversity risk: heat, acidity and oxygen in the water, the currents that connect habitats, and the stock assessments that tell fisheries managers how much can be taken. It links offshore change to coastal habitats and livelihoods.
Ocean science studies the physics, chemistry, biology and geology of the oceans and coasts. It informs 海面上昇, 高潮, marine heatwaves, acidification and fisheries change, all of which affect coastal populations and trade. In biodiversity and nature, climate and hazards and oceans and coasts, ocean projections guide coastal defence, port planning and fisheries management. They link marine hazards to food security, shipping routes and coastal economies. The canonical description is on STEM Commons.
Catch, effort and survey data are fitted in population models to estimate biomass and fishing mortality against reference points, with data-limited methods where records are short.
Satellite sea surface temperature is compared with the local climatology to compute accumulated heat stress, which is related to observed bleaching and mortality.
Ocean circulation models release virtual larvae to estimate which reefs and nurseries supply others, informing the design of protected area networks.
Marine heat, sea temperature and chlorophyll over the Amazon Basin, from NASA GIBS. Each layer carries its own date.
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NASA GIBS / EOSDIS · ASTER GDEM(METI、NASA)· Blue Marble(NASA)· © OpenStreetMap 貢献者(ODbL)· Natural Earth
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Ocean state, framed on the Amazon Basin.NASA が公開するままの衛星およびモデルのプロダクトで、それぞれに固有の日付があります。指標であり、特定の場所の評価ではありません。
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Datasets and records used by ocean and coastal science on this platform, with the role each plays and the label its values carry. Sources are listed in 出典の登録簿.
| データ | 役割 | ラベル |
|---|---|---|
| OBIS marine occurrence records | Species distribution | 観測 |
| Copernicus Marine and NOAA Coral Reef Watch | Temperature, heat stress and biogeochemistry | 観測 |
| Fisheries catch and survey data | Stock assessment inputs | 公表統計 |
| Argo floats and moorings | Subsurface temperature and oxygen | 観測 |
| Ocean circulation model output | Connectivity and projections | モデル化 |
Assembled from the Nexus Standards area profile 生物多様性・自然リスクの標準: the hazards it names, the システム and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full System Builder.
ハザード
システムと連成
管理策
NS-0 憲章と原則NS-1 社会を動かし続ける UNI と成果物カタログ(文法 v0.2:分野、部門、地域、環境の区分)NS-3 リスク記録の UNI(文法、旧体系との対照、割当権限)NS-3b データセットとプロダクトのメタデータ・プロファイル(STAC、DCAT、PROV-O)NS-5 図表・地図・可視化の標準(UI/UX キットと併用)NS-9 文脈 UNI(展開、インスタンス、プログラム・インスタンス)NS-11 検証とモニタリング(エビデンス、証明、ゼロトラストの適合性観測)NRS-N5 生物多様性と自然のリスクとレジリエンスNRS-H65 ハザード・ファミリー:プラネタリー・バウンダリーの逸脱(NHS-1 planet.boundary)NRS-H27 ハザードファミリー:生物多様性と種へのストレス(NHS-1 eco.species)NRS-H26 ハザード・ファミリー:土地と湿地の劣化(NHS-1 eco.land)NRS-H28 ハザード分類:気候状態の移行(NHS-1 eco.climate-state)NRS-H64 ハザード・ファミリー:生態系のレジーム・シフト(NHS-1 eco.regime-shift)観測
例示の地理
Models are checked against tide gauge records, altimetry and in situ profiles. Hindcasts of past storms and heatwaves test predictive skill.
| 確認 | 実施方法 |
|---|---|
| Retrospective analysis | Stock assessments are rerun with recent years removed to test for systematic revision |
| Satellite against in-situ | Remotely sensed temperature and ocean colour are compared with mooring and ship data |
| Bleaching hindcast | Heat stress metrics are tested against surveyed past bleaching events |
Coastal processes at fine scale and ice sheet contributions to sea level remain uncertain. Observations of the deep ocean and polar seas are sparse.
The sectors ocean science for marine biodiversity touches and how strongly they depend on each other: what a study has to observe and model together.
署名
生物多様性とそのパートナー
生物多様性は食料に受粉と土壌(0.6)を、水に流域の調整(0.5)を、健康に人獣共通感染症の波及と医薬品(0.4)をもたらします。
W · E · I · F · H · B
モデル、その仮定、データ、不確実性を、科学者やエンジニアが確認する形で示します。構造は公表された手法に従っています。描かれた値は例示であり、知見ではありません。
How a satellite or sensor record becomes evidence on ocean science for marine biodiversity, and where each step adds uncertainty.
海洋と沿岸 stewards ocean and coastal science for the Consortium and reviews how it is applied across platforms.
Process explorer · Process
9 steps·3 stages·1 gate
プロセス
The WMO flood forecasting manual and Early Warnings for All describe the chain from forecast to action, across EW4All’s four pillars.
Neutral outline of a published external standard or method, from its issuing body. Not a record of operation. Nexus does not perform, certify or approve any step shown. A gate or decision belongs to the party the source names.
報告書 is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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