We've had two wonderful days with a few of their student teachers helping us winterize the Chrysalis' middle school angora rabbit area as well as finish up a student project, an outdoor classroom space. We're very grateful for this symbiotic partnership.
Learning together is fun! Maria Montessori. First snow! A Children's House ages student practices writing the letters that go with a specific set of our Sandpaper Letters. We call this "Trace and Write. Then he traces over several dotted-letter forms of the letter and then tries to write the letter several times on his own. This is all done in a small booklet which has six pages; one page for each of the letters in that particular set of Sandpaper Letters.
We believe school work is done at school and out of school time is for playing, family time, and essential down time to absorb everything from your day. Chrysalis Co-op students practice the renowned Singapore Math curriculum.
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Email or Phone Password Forgot account? Log In. Forgot account? Not Now. Visitor Posts. All proceeds benefit this amazing parent ran school! See More. Hi there! My partner, Erin, and myself have temporarily relocated to Erin is from here originally, and we are here to visit and catch up with family, but were wanting to put feelers out for any kind of baby groups, daycare resources, babysitter recommendations, etc.
Debra Fragala-Pories. Check out our Capital Campaign on Flipcause! Please share and thank you for your support!!! Information about Page Insights Data. The boundary conditions include two spring tides and one neap tide Figure 2 a. The boundaries adjacent to the lagoons and the backbay area are closed.
The significant wave height and peak period observed at NOAA station 25 m depth, see Figures 2 b and 2 c, also see Figure 1 a for the location are applied to the southeast boundary of the spectral wave model SWAN. The observed wave heights ranged from 0. Wind speed and direction measured near the inlet mouth also are used in the circulation and spectral wave models.
The Coriolis parameter is calculated using the latitude of New River Inlet Two scenarios spring and neap tide conditions indicated by the gray bars are discussed in section 4. Snapshots of model results on 27 May during a spring tide tidal amplitude 0. During the maximum flood h EDT, Figure 3 a , flow is funneled into the inlet owing to the water level difference between the inlet and the open sea.
Peak flow velocities in the deeper southwestern channel are predicted to exceed 1. The ebb jet splits into two near the inlet entrance where the deeper and the shallower channels are separated by the center section of the ebb tidal delta. The jet near the southwestern side of the inlet is stronger and wider than the jet in the northeast.
During maximum ebb flow, the southwestern jet can penetrate through the surf zone and into deep water exceeds 8 m depth, Figure 3 b. Slightly south and west of the jet, the modeled ebb flow intensity attenuates rapidly near the outer edge of the ebb tidal delta. The weaker ebb tidal jet in the shallower channel to the northeast is diverted northeastward in the alongshore direction. The boxed areas in Figures 3 a and 3 b surround circulation patterns discussed in the text.
Modeled color contours and observed colors inside the small circles at sensor locations wave heights during c maximum flood and d maximum ebb.letpirebifil.gq
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If the model and data are the same, the circle color equals the nearby color contour. The solid curves are bathymetric contours 0, 2, 4, 6, and 8 m depth relative to NAVD The wave field near the inlet is modulated significantly by the tides. During maximum flood Figure 3 c , waves are predicted to break over the ebb tidal delta where the local water depth is less than 2 m and the peak wave height exceeds 0. However, waves can penetrate into the inlet, and a significant wave height of 0.
During maximum ebb flow Figure 3 d , waves break in a narrow region at the outer edge 2 m depth of the ebb tidal delta. The modeled wave height decreases across the width of the ebb shoal to about 0.
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Modeled wave heights are consistent with the observations compare colors within the small circles observations in Figures 3 c and 3 d with nearby color contours model. Although model skill typically is high, wave height is overpredicted at sensor 15 Figures 3 c and 3 d, sensor 15 is close to shore, northeast of the inlet channels , possibly owing to its shallow depth, and wave height is underpredicted during flood at sensors 3 and 53 in the inner part of the inlet channel Figure 3 c.
The hydrodynamics at this inlet system are complex owing to the interactions between tidal currents, waves, and local bathymetry. A more thorough discussion of the model performance is given next. The model accuracy is assessed with the Wilmott Skill score [ Willmott , ], defined as 13 where is the sample size, is the variable being compared, is the sample mean, and the subscript and represent the modeled and observed values, respectively.
The skill values of predicted significant wave heights and current velocities are summarized in Table 1. The numerical model skillfully predicts the observed significant wave heights at most locations in the channels and on the ebb deltas Table 1 ; skill values typically are greater than 0. In the southwestern deeper channel sensors 1—6 , the model skill for velocity is high Table 1. Tidal flows at NRI are progressive, and thus, peak flood and ebb coincide with high and low tide, respectively [ Wargula et al. Model skill also is high in the northeastern shallower channel Table 1 , e.
In particular, the bathymetry of the flood tidal deltas was not surveyed the area between sensors 52 and 53, Figure 1 b. For example, at sensor 58, the observed and predicted tidal flows have become weak compare Figures 6 a and 6 b with Figures 5 a and 5 b , and wave heights are larger and less dominated by the tides than at sensor 05 compare Figure 6 c with Figure 5 c. Although the model slightly overpredicts the significant wave height at sensor 58, the temporal evolution is modeled well Figure 6 c. The flows near the beach alongshore of the inlet sensors 15 and 85 , which sometimes are driven by breaking waves and sometimes by tidal flows, also are difficult to model.
In particular, wave heights vary over multiday periods at sensor 78 Figure 7 a, sensor 78 is in 5 m water depth, offshore of the southwest side of the ebb delta, Figure 1 b in response to offshore winds, but only a few hundred meters onshore, wave heights are relatively small and tidally modulated sensors 76 and 77, Figures 7 a— 7 c. Although skill is only fair at some locations in this complicated region, the model simulates the dynamics of the inlet, and in particular reproduces the wave and current patterns of the sharp transition, which is discussed further in section 5.
Modeled blue curves and measured red dots a, b, and c significant wave height and d, e, and f current speed at sensors 78, 77, and 76 versus time.
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Consistent with field observations [ Wargula et al. When depth changes are neglected, the wave field predicted for flood is similar to that for ebb compare Figures 9 a with 9 b, and with Figures 8 a and 8 d, which include the depth changes. This enhancement of flows over the shoals is different from that predicted during the spring tide conditions Figure 8 a. Furthermore, clockwise circulation patterns can be observed near the entrances of the two channels black boxes in Figure 10 a.
During maximum ebb, the tidal jet is weaker during neap tides Figure 10 b than during spring tides Figure 8 b , as expected. Meanwhile, the alongshore current and clockwise circulations at the northeastern shore during maximum ebb flow are more intense with larger waves Figure 8 b than with smaller waves blue box in Figure 10 b.
The boxed areas surround circulation patterns discussed in the text. The interaction between tidal jets, waves, and bathymetry near the inlet is clarified further in section 5. This sharp transition of wave and current patterns has important implications for nearshore mixing and sediment transport. The rate of wave energy dissipation associated with breaking is used to illustrate the mechanisms controlling this phenomenon.
Around the southwest side of the ebb tidal delta during high tide maximum flood the rate of energy dissipation is highest red contours in Figure 11 a along the shoreline and at the onshore edge of the ebb tidal delta between sensors 76 and 77, near the edge of the newly dredged channel. The rate of energy dissipation is much weaker orange and yellow contours, Figure 11 a over the outer offshore ebb tidal delta.
Thus, the model suggests that there is occasional wave breaking and weak spilling across the entire ebb tidal delta at high tide. In contrast, during low tide maximum ebb , large dissipation rates occur along the 2 m depth contour on the outer edge of the southwestern ebb tidal between sensors 77 and 78 , as well as near the newly dredged channel Figure 11 b.
The model suggests that the location of the breaker zone, and the total wave dissipation across the southwestern delta, are modulated by the tidally varying water depth compare Figure 11 a with Figure 11 b. The snapshots of maximum flood and ebb flows high and low tide show persistent circulation patterns, especially during more energetic wave conditions Figures 3 and Thus, the simulations are used as a diagnostic tool to investigate the persistent circulation pattern qualitatively, but not to represent realistic subtidal flow patterns. The modeled Eulerian residual flow velocity exceeds 0.
The residual flow velocity over the ebb tidal delta is about 0. On the southwest side of the ebb tidal delta, a clockwise circulation pattern is predicted see region III in Figure 12 a , which feeds or is adjacent to a strong southwestward directed alongshore current driven by the oblique waves. Another clockwise circulation pattern appears off the northeastern shore see region I in Figure 12 a , which also is visible in the snapshots of maximum flood and ebb flows Figures 3 a and 3 b.
The calculated Lagrangian residual flow patterns U r2 , not shown are qualitatively similar to those of the Eulerian residual flows U r1. However, the Lagrangian magnitude is smaller than U r1 in the two inlet channels, and is much larger than U r1 on the shoals owing to the weighting by water depth to conserve mass.