Forest loss and disturbance alerts
Landsat, Sentinel-2 and Sentinel-1 time series are classified to map annual loss and near-real-time disturbance, with radar used where cloud blocks optical sensors.
GCRI · Biodiversity Nexus
Satellites observe forests, wetlands, coasts and the ocean surface repeatedly and across borders, which field surveys cannot. Earth observation maps ecosystem extent, change and some aspects of condition, and it gives a consistent record for places where no one monitors on the ground.
Earth observation and remote sensing gather information about the Earth’s surface and atmosphere from airborne and spaceborne sensors. They provide consistent, repeatable measurements over areas that are hard to monitor on the ground. In biodiversity and nature, climate and hazards and oceans and coasts, earth observation maps exposure, damage and environmental change across borders and sectors. It supports rapid assessment after disasters and long-term monitoring of risk drivers. The canonical description is on STEM Commons.
Landsat, Sentinel-2 and Sentinel-1 time series are classified to map annual loss and near-real-time disturbance, with radar used where cloud blocks optical sensors.
Radar and optical time series track flooding regimes, wetland extent and mangrove change, separating seasonal variation from conversion.
Spaceborne lidar and radar estimate canopy height and biomass, and spectral indices track phenology and stress as proxies for ecosystem condition.
Land cover, vegetation and plant growth over the Amazon Basin, from NASA GIBS. Each layer carries its own date.
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Lapisan 3
Kondisi habitat, untuk halaman ini
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Terbaru yang tersedia
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © kontributor OpenStreetMap (ODbL) · Natural Earth
Memuat citra NASA terbaru.
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Kondisi habitat, dibingkai pada Lembah Amazon.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 earth observation and remote sensing on this platform, with the role each plays and the label its values carry. Sources are listed in register sumber.
| Data | Peran | Label |
|---|---|---|
| Landsat and Sentinel-2 optical imagery | Land cover and change | TERAMATI |
| Sentinel-1 and ALOS PALSAR radar | Forest and wetland mapping through cloud | TERAMATI |
| GEDI spaceborne lidar | Canopy height and structure | TERAMATI |
| Copernicus Marine ocean colour and temperature | Marine productivity and heat stress | TERAMATI |
| ESA WorldCover | Land cover baseline | DIMODELKAN |
Layar yang akan digunakan sebuah tim untuk mengikuti metode ini: ukuran, status, dan keputusannya. Nama adalah contoh dan nilai bersifat ilustratif.
Biodiversity · Earth observation for biodiversity · Run R-8579
revisit and swath
stratified sample
| Air | 91 | 97 | 96 |
| Cropland | 89 | 87 | 287 |
| Built-up | 82 | 79 | 124 |
| Forest | 91 | 88 | 103 |
Products are assessed against ground reference data using accuracy matrices and independent samples. Cross-calibration between sensors checks consistency over time.
| Pemeriksaan | Cara pelaksanaannya |
|---|---|
| Accuracy assessment with area estimation | Maps are scored against a probability sample of reference points, and areas are adjusted for classification error |
| Cross-sensor consistency | Trends are checked across sensors and processing versions before they are reported |
| Field calibration | Structure and condition proxies are calibrated against inventory plots |
| Coverage reporting | Cloud, revisit gaps and missing scenes are reported as no data, not as no change |
Clouds, revisit gaps and mixed pixels limit what can be observed. Changes in sensors and processing can create artificial trends.
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
The sectors earth observation for 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
Antariksa dan Pengamatan Bumi stewards earth observation and remote sensing for the Consortium and reviews how it is applied across platforms.
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 earth observation for biodiversity, and where each step adds uncertainty.
Process explorer · Process
9 steps·4 tahap·1 gate
Proses
Processing levels are mission specific; Sentinel-2 runs from Level-0 raw data to Level-2A, and CEOS Analysis Ready Data sets the minimum for analysis.
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. Level-1B and Level-1C add corrections; Level-2A adds atmospheric correction and scene classification.
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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