Corridor Sentinel — Environmental Monitoring Network

Active Sensors📡

118

of 120 deployed — 2 in calibration

Data Points / Day📊

2.47M

all nodes, all frequencies

Corridor Length🛣️

150 mi

Birmingham → Tullahoma triangle

Public Dashboard Users👥

5,247

unique monthly — Tier 1 public access

Node Status — Real Time

🏙️ Node 1: Birmingham

OPA Campus + BNSF Rail Yard

All Clear

PM2.512.3 μg/m³

PM1024.1 μg/m³

VOC0.04 ppm

Noise (BNSF)67 dB

Temp72°F

☢️ Node 2: Browns Ferry

Tennessee River — TVA Nuclear

All Clear

Water Temp ↑64.2°F

Water Temp ↓72.8°F

ΔT (Thermal)+8.6°F

Radiation0.12 μSv/hr

Dissolved O₂7.8 mg/L

🚀 Node 3: Redstone

Arsenal Perimeter — Huntsville

Test Window

VOC0.18 ppm

PM2.515.7 μg/m³

Hydrazine<0.01 ppm

Noise74 dB

Wind8 mph NNW

💨 Node 4: Tullahoma

Arnold AFB / AEDC Perimeter

All Clear

NOx22 ppb

CO0.3 ppm

Acoustic48 dB

Wind5 mph SSE

Radiation0.08 μSv/hr

Ghost Sensors — Control Sites

Bankhead ForestBaseline

PM2.56.1 μg/m³

VOC0.01 ppm

Noise28 dB

Paint Rock ValleyBaseline

PM2.58.3 μg/m³

VOC0.02 ppm

Noise34 dB

Sewanee PlateauBaseline

PM2.55.4 μg/m³

VOC0.01 ppm

Noise22 dB

Corridor Personnel

Principal Investigator

Dr. Sarah Adeyemi

UAB School of Public Health

Mesh Architect

Nathan Park

LoRaWAN + Event-Triggered Sampling

Community Engagement

Keisha Brown

Public Dashboards + Oral History

Data Security

James Whitfield

Edge Processing + Tier Architecture

Detailed Node Instrumentation

🏙️ Node 1: Birmingham

OPA Campus (192 acres) + BNSF Rail Yard (1 mi NE)

PurpleAir PM2.5/PM1012.3 / 24.1

PID VOC Detector0.04 ppm

MEMS Acoustic Array67 dB (rail ops)

Davis Weather Station72°F / 58% RH

Soil EC Probes (campus grid)1.2 dS/m

LoRaWAN Gateways4 of 4 online

Sampling ModeBaseline (1-min)

☢️ Node 2: Browns Ferry

Tennessee River — 80 mi N of OPA — TVA 3,930 MW

Atlas Scientific PT-1000 (upstream)64.2°F

Atlas Scientific PT-1000 (downstream)72.8°F (+8.6°F)

uRADMonitor Gamma0.12 μSv/hr

Dissolved O₂ / pH7.8 mg/L / 7.4

Hydrophone ArrayBaseline (fish active)

Davis Vantage Pro268°F / SW 6mph

Sampling ModeBaseline (1-min)

🚀 Node 3: Redstone Arsenal

Perimeter Stations — Huntsville — 38,000 acres

PID + Metal Oxide (VOC)0.18 ppm (test window)

PurpleAir PM2.5/PM1015.7 / 28.3

Hydrazine Specific<0.01 ppm

TDR Soil Probes22% moisture / 0.8 dS/m

MEMS Acoustic74 dB (test activity)

Campbell Scientific Met70°F / NNW 8mph / 1Hz

Sampling ModeEvent-Triggered (1-sec)

💨 Node 4: Tullahoma / AEDC

Arnold AFB Perimeter — 68 Test Facilities — 236,000 HP

Alphasense NDIR (NOx/CO/CO₂)22ppb / 0.3ppm / 412ppm

MEMS Hi-Dynamic Acoustic48 dB (idle)

UV-Vis SpectrometryNo anomalous compounds

Campbell Scientific 1Hz Met65°F / SSE 5mph

Scintillation Gamma0.08 μSv/hr

AEDC NotificationNo tests scheduled 48hr

Sampling ModeBaseline (15-min)

Thermal River — Tennessee River Economic Indicator

Temperature Differential: Upstream vs Downstream (Browns Ferry)

ΔT correlates with TVA grid demand → regional economic activity proxy

Upstream (°F) Downstream (°F)

Current ΔT🌡️

+8.6°F

Summer weekday afternoon — peak demand

Striped Bass🐟

Dispersed

Avoiding warm plume (summer behavior)

Economic Signal📈

High

Industrial + residential load elevated

Discovery: Adeyemi, Park, Brown, Whitfield (2027)

"Thermal Signatures as Socio-Ecological Indicators: Multi-Scale Monitoring of the Tennessee River" — First peer-reviewed publication demonstrating that nuclear plant thermal discharge patterns serve as real-time proxies for regional economic activity. When the factories run, the river warms. When the economy slows, the river cools. The fish read it in degrees. Nathan Park read it in data.

Okonkwo IoT Stack — Campus to Corridor

🧑‍💻

Dr. Samuel Okonkwo

IoT Infrastructure Director — College IX / XIV / XIX

"Technology doesn't replace nature — it translates it." Brooklyn → Miami Everglades (0.73 Hz aquifer pulse) → NYC Bethesda Fountain (quantum field detection) → OPA 192-acre LoRaWAN → 150-mile Corridor Sentinel.

5-Layer Architecture

📡

Layer 1: Sensors

PurpleAir, Atlas Scientific, Campbell Scientific, uRADMonitor, MEMS arrays, TDR probes

Nathan Park (corridor design) · College XIII students (solder + deploy)

120

deployed

🖥️

Layer 2: Edge Computing

Raspberry Pi 4B + custom firmware at each node. Local data processing — raw millisecond data never leaves the node.

James Whitfield (secure architecture) · Luna Rodriguez (DOSA cybersecurity audit)

7

edge nodes

📶

Layer 3: LoRaWAN Mesh

Campus backbone (25 building arrays + 8ft pole stations) extended to 150-mile corridor via gateway chain.

Samuel Okonkwo (campus) · Nathan Park (corridor extension)

150

miles

☁️

Layer 4: Cloud Repository

UAB + OPA shared infrastructure. Building 9 server room. PHIN batch scheduling.

Dr. Ravi Patel (College IX Dean) · PHIN (logistics AI)

2.47M

pts/day

🖼️

Layer 5: Presentation

Three-tier data commons. Tier 1 public (this dashboard). Tier 2 research (.edu login). Tier 3 restricted (committee + embargo).

Keisha Brown (public UI) · James Whitfield (access control)

3

tiers

Okonkwo Origin: Everglades → OPA

Miami: The River That Beats

Samuel detected a 0.73 Hz subsonic pulse in the Biscayne Aquifer — right at the edge of human perception. The aquifer was breathing. His 12-station sensor grid in Carmen Mendez's Everglades research area provided 18 hours of early warning before an aquifer pressure shift flooded low-lying areas.

NYC: Bethesda Convergence

Modified smartwatch with exposed circuitry threw magnetic field error messages as reality distorted around the fountain. Samuel witnessed entities 000 and -0 complete an incomplete quantum circuit — causing global markets to synchronize for 3.7 seconds.

Three-Tier Data Commons

1

Public Real-Time

Air quality index (color-coded), water temperature vs. historical, noise levels with context, control site comparisons.

UpdateEvery 15 min

AccessNo login

Users5,247/mo

Anyone. Grandmother in Decatur checks this on her phone.

2

Research Database

Full resolution data (1-second), QA/QC flags, calibration notes, cross-node correlation tools, API access.

Delay30-day embargo

Access.edu login

Users340

Institutional researchers. UAB + OPA + partner universities.

3

Restricted Archive

Event-correlated data (test windows), incident records, health study cross-references, raw sensor dumps.

Embargo5-year (military)

AccessCommittee approval

Users12

Multi-stakeholder committee. Legal review required.

The Question That Built It

Keisha Brown asked: "Who sees this? If we measure radiation near Browns Ferry, do we just publish it? Do we tell TVA first? Do we tell the fishermen?"

James Whitfield answered: "Who owns the air?"

Nobody owns the air. The data commons does.

Sentinel Event Log

2027-03-15 02:47:00 CDT

ANOMALY — Node 2 Browns Ferry: Radiation spike to 0.3 μSv/hr. 3 sensors confirm. Event-triggered mode activated. All Node 2 sensors ramped to 1-sec resolution.

2027-03-15 03:34:00 CDT

RESOLVED: TVA confirms planned maintenance — spent fuel rod movement. Forgot to notify Sentinel. Data reclassified: "expected variation."

2027-03-15 09:00:00 CDT

PROTOCOL UPDATE: TVA added to 48-hour operational notification list. Same protocol as AEDC (Colonel Holloway).

2027-03-16 14:00:00 CDT

COMMUNITY: Decatur fishing community email received: "Thank you. Nobody ever told us what was happening at that plant before."

2027-04-01 08:00:00 CDT

CALIBRATION DRIVE Q2: 20 students (12 OPA + 8 UAB) completed 3-day corridor drive. 118 of 120 sensors within spec. 2 replaced (corroded thermistor at Node 2, drifted PID at Node 3).

2027-06-15 10:00:00 CDT

PUBLICATION: "Thermal Signatures as Socio-Ecological Indicators" — Adeyemi, Park, Brown, Whitfield. Submitted to Environmental Science & Technology.

2027-07-22 16:47:00 CDT

EVENT-TRIGGERED — Node 4 Tullahoma: Acoustic signature detected (16S tunnel activation). All Node 4 sensors ramped to 1-sec. AEDC 48-hr notification confirmed. Data flagged for Tier 3.

2027-09-01 09:00:00 CDT

MILESTONE: 1 year operational. 2.47M data points/day average. 0 missed calibrations. 5,247 monthly dashboard users. First annual Crossings Symposium scheduled.