Airports / Hamilton U. S. Army Airfield
Hamilton U. S. Army Airfield(KSRF)
San Rafael, United States
Last updated: Mar 29, 2026
Activity Summary
Airport Patterns
Emissions up 409% vs prior period — significantly busier than prior period
Charter/owner classification not available for this airport's flights
Spikes
Significant deviations from this airport's baseline in the selected period.
CO₂ Above Baseline
30t
Signals Detected
5
Highest Severity
High
Elevated activity Apr 22, 2025 – Apr 28, 2025 — 7 flights in 7 days vs baseline of 3
7 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 158%.
5.7t CO₂
Elevated activity May 4, 2025 – May 10, 2025 — 6 flights in 7 days vs baseline of 3
6 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 121%.
7.2t CO₂
Elevated activity Jun 6, 2025 – Jun 12, 2025 — 6 flights in 7 days vs baseline of 3
6 flights recorded in a 7-day window, exceeding the airport baseline of 3 flights per week by 121%.
5.8t CO₂
Single high-emission departure N61TF → KJYO on Jul 21, 2025 — 11.0t CO₂, 80% of day's total
Aircraft N61TF departing to KJYO produced 11.0t CO₂, representing 80% of all airport emissions on Jul 21, 2025.
11.0t CO₂
15-day gap in recorded activity ending Aug 19, 2025
Airport had 15 consecutive days with zero recorded flights before activity resumed on Aug 19, 2025.
0.3t CO₂
Route Map
KSRF to KSJC · 58 miles
Total Flights
26
Avg CO₂/Flight
0.8t
Total Emissions
21.0t CO₂
KSRF to KVNY · 348 miles
Total Flights
12
Avg CO₂/Flight
1.4t
Total Emissions
17.0t CO₂
KSRF to KSNA · 399 miles
Total Flights
8
Avg CO₂/Flight
1.7t
Total Emissions
13.7t CO₂
KSRF to KOAK · 28 miles
Total Flights
17
Avg CO₂/Flight
0.7t
Total Emissions
11.6t CO₂
KSRF to KJYO · 2,404 miles
Total Flights
1
Avg CO₂/Flight
11.0t
Total Emissions
11.0t CO₂
KSRF to KSFO · 32 miles
Total Flights
10
Avg CO₂/Flight
0.9t
Total Emissions
9.3t CO₂
Recent Flights
10 total flights recordedShowing most recent flights — not filtered by viewing period