Case Study: Fort McHenry Wetlands Restoration Project where I represents an individual month & N is the total number of months Calculation of MTL Datum

Case Study: Fort McHenry Wetlands Restoration Project

where I represents an individual month & N is the total number of months

Calculation of MTL Datum (meters) for Subordinate A (Marsh Restoration) corrected by the Control B station’s accepted Datum

A (m) B (m) A – B (m)

May 04 1.539 1.542

Jun 04 1.575 1.569

Jul 04 1.618 1.628

Sum

Total Months (N)

Mean

Accepted for B 1.4921.492

Corrected for A



Calculation of DTL Datum (meters) for Subordinate A (Marsh Restoration) corrected by the Control B station’s accepted Datum

A (m) B (m) A – B (m)May 04 1.558 1.559Jun 04 1.595 1.587Jul 04 1.642 1.651

SumTotal Months (N)

Mean


Corrected for A



Calculation of Mn Datum (meters) for Subordinate A (Marsh Restoration) corrected by the Control B station’s accepted Datum

A (m) B (m) A / B (m)

May 04 0.355 0.358

Jun 04 0.355 0.357

Jul 04 0.364 0.369

Sum

Total Months (N)

Mean


Corrected for A



Calculation of Gt Datum (meters) for Subordinate A (Marsh Restoration) corrected by the Control B station’s accepted Datum

A (m) B (m) A / B (m)

May 04 0.500 0.502

Jun 04 0.503 0.504

Jul 04 0.508 0.502

Sum

Total Months (N)

Mean


Corrected for A


Tidal Datums (meters) by the Modified-Range Ratio Method (MRRM) for Subordinate (A) at Marsh Restoration corrected by long-term Control (B)

at Baltimore

1. MLWA = MTL - (0.5 x Mn) = ____ - (0.5 x ____) = ____ m____ m

1. MHWA = MLW + Mn = ____ + ____ = ____ m____ m

3. MLLWA = DTL - (0.5 x Gt) = ____ - (0.5 x ____) = ____ m____ m

4. MHHWA = MLLW + Gt = ____ + ____ = ____ m____ m

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Case Study: Fort McHenry Wetlands Restoration Project where I represents an individual month & N is the total number of months Calculation of MTL Datum