AQUATIC HEALTH RECORD / RJ-MSL-01

Man Sagar Lake

PUBLISHED RESEARCH RECORD

Nov 2019 — Feb 2020 · 4 fixed sampling sites

SCREENING HEALTH—/100
Derived from measured history. Not a current regulatory classification.
LATEST PERIOD—
DO—mg/L
BOD—mg/L
pH—
NEURAL—signal
MEASURED TRAJECTORY

Four months, five measures.

Stress is a transparent derived screening signal.16 published observations
LATEST MEASUREMENTS

February 2020

PUBLISHED
pH—site mean
DO—mg/L
BOD—mg/L
TDS—mg/L
COD—mg/L
Temperature—°C
Measured values remain distinct from derived scores and live context.
SITE COMPARISON

Where the chemistry sits.

mean BOD · mg/L
FIELD LOCATIONS

Four fixed sites.

Man Sagar Lake
EVIDENCE STACK

Three layers. No blending.

Measured16 published observations · 4 sites
PRIMARY
Derivedrules · EWMA · PCA · clustering
ANALYTICS
ML signaltemporal anomaly model
SECONDARY
Live contextweather · biodiversity · external feeds
SEPARATE
ELEVATED SCREENING SIGNALOrganic-load and oxygen stress

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MULTIVARIATE VIEW

PCA loadings.

—

Statistical context only. PCA describes covariance; it does not establish causality.

FIELD PROTOCOL

Go outside the screen.

TraceIT stores a repeatable observation procedure so field work is comparable across time and people.

FIELD KITTraceIT / BASICGPS · pH · temperature · DO · EC/TDS · turbidity · camera
  1. Rinse probes with site water.
  2. Record GPS and timestamp.
  3. Measure pH + temperature.
  4. Measure dissolved oxygen.
  5. Record conductivity/TDS + turbidity.
  6. Photograph and describe visible conditions.
ACTION MEMORY

What happens after a finding?

Interventions belong in the same record so follow-up can be evaluated against evidence.

LIVE CONTEXT

Current feeds stay outside the historical record.

GBIFNot refreshed
WEATHERNot refreshed
USGSExternal network