Research Portal

Compare beaches, filter by reporter cohort and quality grade, and export the underlying dataset. Manage your research group from your account.

Cohort
Quality
CSVGeoJSONJSON

Cite This Data

Tarline Community & Research Network (2026). Tarline beach tar observations [Data set]. tarline.org

Haskell's BeachCarpinteria State Beach
Swell ft
Wind kt

Swell Direction × Tar

Loading swell/tar correlation…

Surf Model Validation

Trailing 30-day mean absolute error between Tarline's Tier 2 (period-banded window model) surf height and CDIP MOP's own breaker-transformed height, per Santa Barbara beach — the acceptance target (research doc §8) is MAE ≤ 1ft for 80% of spot-days. "Observed days" counts days with at least one user-reported wave-size quick-tap feeding the bias loop.

Beach MAE (ft) Sample days Observed days
Mesa Lane Beach 2.2 45 0
Ellwood Beach 2.2 45 0
Arroyo Burro Beach County Park 2.1 45 0
Carpinteria State Beach 2.1 45 0
Rincon Point 2.1 45 0
Butterfly Beach 2.0 45 0
Haskell's Beach 2.0 45 0
Coal Oil Point 1.9 45 0
El Capitan State Beach 1.8 45 0
Refugio State Beach 1.8 45 0
Hammonds Beach 1.7 45 0
Gaviota State Beach 1.7 45 0
Jalama Beach 1.7 45 0
More Mesa Beach 1.6 45 0
Summerland Beach 1.6 45 0
Sands Beach 1.4 45 0
Leadbetter Beach 1.3 45 0
Campus Point 1.3 45 0
East Beach 1.2 45 0
Goleta Beach 1.2 45 0
West Beach 1.1 45 0

Context Layers

1
Known natural seep fields
458
Active oil wells (approx.)
4
Offshore platforms (approx.)

Static display-only counts for v1 — live seeps/wells/platforms feeds land in v2.

Incident Archive

Export CSV ↓
Aug 30, 2026 IncidentNews Sunken Vessel at Boat Ramp; Moss Landing, California Source ↗
Aug 25, 2026 IncidentNews Dead Cormorants; San Diego, California Source ↗
Aug 21, 2026 IncidentNews F/V Resolution; Inverness, California Source ↗
Aug 13, 2026 IncidentNews Pollution Surveillance Report off Santa Barbara; Montecito, California Source ↗
Aug 13, 2026 IncidentNews Diesel Spill in Monterey Bay; Monterey, California Source ↗
Aug 7, 2026 IncidentNews Tar Balls at Monterey Bay; Pacific Grove, California Source ↗
Aug 7, 2026 IncidentNews Disabled Vessel near Elk Horn Slough; Moss Landing, California Source ↗
Jul 31, 2026 IncidentNews Vessel Sinking in San Joaquin River; Isleton, California Source ↗
Jun 13, 2026 IncidentNews Sunken Fishing Vessel in Santa Cruz Harbor; Santa Cruz, California Source ↗
May 22, 2026 IncidentNews Pipeline Leak into Los Angeles River; East Los Angeles, California Source ↗
May 22, 2026 IncidentNews Release of Methyl Methacrylate; Garden Grove, California Source ↗
May 11, 2026 IncidentNews Fire on Platform Habitat; Santa Barbara, California Source ↗
Apr 21, 2026 IncidentNews Sunken Sailboat, San Diego Bay; Coronado, California Source ↗
Apr 3, 2026 IncidentNews Sodium Hydroxide Leak: Port of Los Angeles/Long Beach, California Source ↗
Mar 27, 2026 IncidentNews Recreational Vessel Grounding, Salinas River; Monterey Bay, California Source ↗
Mar 9, 2026 IncidentNews Container Ship Loses 32 Containers; south of Aleutian Islands, Alaska Source ↗
Mar 5, 2026 IncidentNews Tarball Report at Monterey Bay; Indian Head Beach, California Source ↗
Mar 5, 2026 IncidentNews Stranded Vessel in San Francisco Bay; Belvedere Tiburon, California Source ↗
Feb 1, 2026 IncidentNews Unknown Substance; Hyde Street Pier in San Francisco Bay, San Francisco, California Source ↗
Jan 7, 2026 IncidentNews Possible Oil Detected by Satellite Imagery off Coastal California Source ↗
Dec 24, 2025 IncidentNews Beached Sailboat on East Beach; Santa Barbara, California Source ↗
Dec 15, 2025 IncidentNews Vessel Adrift; Dillon Beach, California Source ↗
Nov 21, 2025 IncidentNews Containership Fire at Port of Los Angeles; Long Beach, California Source ↗
Sep 11, 2025 IncidentNews Shipping Container Spill, Port of Long Beach; Long Beach, California Source ↗
Jul 27, 2025 IncidentNews Aircraft Crash near Point Pinos, Monterey Bay; Pacific Grove, California Source ↗
Jun 15, 2025 IncidentNews Sheen near San Clemente Island; Southern California Source ↗
Jun 8, 2025 IncidentNews Crashed Private Plane; San Diego, California Source ↗
Apr 2, 2025 IncidentNews Possible HazMat Spill; Crockett, California Source ↗
Mar 26, 2025 IncidentNews Pleasure Craft EMERALD C grounded, Stillwater Cove; Pebble Beach, California Source ↗
Mar 15, 2025 IncidentNews Possible Pollutant Report; off Stinson Beach, California Source ↗
Mar 13, 2025 IncidentNews Crude oil discharge, Berth 55; Port of Long Beach, California Source ↗
Feb 12, 2025 IncidentNews Navy Jet Fighter Crash; San Diego Bay, CA Source ↗
Jan 16, 2025 IncidentNews Battery Facility Fire; Moss Landing, CA Source ↗
Nov 7, 2024 IncidentNews Sailboat Sinking/Grounding, Oceanside Harbor; Oceanside, CA Source ↗
Aug 31, 2024 IncidentNews F/V THE JIG STRIKE Sunk; 100+ miles off San Diego, CA Source ↗
Aug 6, 2024 IncidentNews Satellite Imagery Anomaly; off Malibu, CA Source ↗
Jul 2, 2024 IncidentNews Mystery Spill in Threemile Slough; Rio Vista, CA Source ↗
Jun 9, 2024 IncidentNews Two Sheens; East of San Clemente Island, CA Source ↗
May 22, 2024 IncidentNews Sheening M/V AURORA; Little Potato Slough, Stockton, CA Source ↗
Mar 28, 2024 IncidentNews Grounded F/V WESTERLY; Point Reyes, CA Source ↗
Mar 15, 2024 IncidentNews Diesel Spill from U.S. Coast Guard Cutter Alder; WNW of Fort Bragg, CA Source ↗
Mar 8, 2024 IncidentNews Sheen Report; off Huntington Beach, CA Source ↗
Feb 10, 2024 IncidentNews Grounded Fishing Vessel Aleutian Storm; Bodega Bay, CA Source ↗
Feb 7, 2024 IncidentNews 24 Lost Shipping Containers; offshore of Monterey, CA Source ↗
Jan 30, 2024 IncidentNews Tanker Truck Lube Oil Release; Port Hueneme, CA Source ↗
Jan 30, 2024 IncidentNews Gray whale carcass; Solana Beach, CA Source ↗
Jan 21, 2024 IncidentNews Stormwater Outfall Oil Discharge; Dominguez Channel, Long Beach, CA Source ↗
Dec 10, 2023 IncidentNews Fin Whale Carcass on Pacific Beach; San Diego, CA Source ↗
Sep 26, 2023 IncidentNews Tug MAZAPETA sunk; Little Potato Slough, Stockton, CA Source ↗
Aug 27, 2023 IncidentNews 53-foot Motor Yacht Adrift Off Big Sur, CA Source ↗

Showing the 50 most recent of 2033 — full history via CSV export above.