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 kenaikan muka laut, gelombang badai, 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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Terbaru yang tersedia
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © kontributor OpenStreetMap (ODbL) · Natural Earth
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Ocean state, framed on the Amazon Basin.Produk satelit dan model sebagaimana diterbitkan NASA, masing-masing dengan tanggalnya sendiri. Produk ini adalah indikator, bukan penilaian atas tempat mana pun.
Lapisan dan tanggal
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 register sumber.
| Data | Peran | Label |
|---|---|---|
| OBIS marine occurrence records | Species distribution | TERAMATI |
| Copernicus Marine and NOAA Coral Reef Watch | Temperature, heat stress and biogeochemistry | TERAMATI |
| Fisheries catch and survey data | Stock assessment inputs | Statistik terbitan |
| Argo floats and moorings | Subsurface temperature and oxygen | TERAMATI |
| Ocean circulation model output | Connectivity and projections | DIMODELKAN |
Disusun dari profil bidang Nexus Standards profil area Standar risiko keanekaragaman hayati dan alam: bahaya yang disebutkannya, sistem dan sektor yang menanggung kerugian, kendali yang meredamnya, dan data yang mengamatinya. Pilih komponen, tentukan bahaya pemicu, dan telusuri kaskade langkah demi langkah. Tampilan Peta menempatkan proses pada contoh geografi dengan data terbuka. Setiap bobot keterkaitan adalah asumsi yang dinyatakan dan dapat Anda ubah. Model pengajaran, bukan prakiraan, penilaian, atau sertifikasi. Untuk memodelkan tempat pilihan Anda sendiri, buka System Builder.
Bahaya
Sistem dan keterkaitan
Kendali
NS-0 Anggaran dasar dan prinsipNS-1 Observatory UNI dan katalog artefak (tata bahasa v0.2: segmen domain, sektor, wilayah, dan lingkungan)NS-3 UNI catatan risiko (tata bahasa, pemetaan ke sistem lama, kewenangan alokasi)NS-3b Profil metadata dataset dan produk (STAC, DCAT, PROV-O)NS-5 Standar gambar, peta, dan visualisasi (dengan kit UI/UX)NS-9 UNI kontekstual (penerapan, instans, instans program)NS-11 Verifikasi dan pemantauan (bukti, atestasi, pengamatan kesesuaian zero trust)NRS-N5 Risiko dan ketahanan keanekaragaman hayati dan alamNRS-H65 Keluarga bahaya: Pelampauan batas planet (NHS-1 planet.boundary)NRS-H27 Keluarga bahaya: Tekanan keanekaragaman hayati dan spesies (NHS-1 eco.species)NRS-H26 Keluarga bahaya: Degradasi lahan dan lahan basah (NHS-1 eco.land)NRS-H28 Keluarga bahaya: Pergeseran keadaan iklim (NHS-1 eco.climate-state)NRS-H64 Keluarga bahaya: Pergeseran rezim ekosistem (NHS-1 eco.regime-shift)Pengamatan
Contoh geografi
Models are checked against tide gauge records, altimetry and in situ profiles. Hindcasts of past storms and heatwaves test predictive skill.
| Pemeriksaan | Cara pelaksanaannya |
|---|---|
| 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.
Tanda tangan
Keanekaragaman hayati dan mitranya
Keanekaragaman hayati memberi penyerbukan dan tanah kepada pangan (0,6), pengaturan daerah tangkapan kepada air (0,5), dan limpahan zoonosis serta obat kepada kesehatan (0,4).
W · E · I · F · H · B
Model, asumsi, data, dan ketidakpastiannya, dalam bentuk yang akan diperiksa ilmuwan atau insinyur. Strukturnya mengikuti metode yang dipublikasikan. Nilai yang digambar bersifat ilustratif, bukan temuan.
How a satellite or sensor record becomes evidence on ocean science for marine biodiversity, and where each step adds uncertainty.
Samudra dan Pesisir 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
Proses
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.
Laporan 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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