Testing the Theory: 2021 - 24 

II. Wave Modelling

First Stage Modelling:

When the wavelength 'Minimum/Maximum' cycle was considered in combination with the 'Five Locations' Vertical Sequence data it became possible to sketch out an initial theoretical 'Vertical Section Model' to capture what monthly changes in wavelength would look like over the course of a year at any one of the four wave vectors making up the 'Grid & Lattice', while simultaneously achieving a best fit to all the data to date from across the whole site (see Model No.1 in fig.2.102 below).

Fig. 2.102. Model No.1: Bi-Annual Oscillations - Vertical Sections linked to 5 Key Locations.

The yearly ±2 x SD horizontal oscillation range was calculated using daily and/or weekly observation data from 2015-17 and 2021-23 derived from all five locations (see Table 2 below). 

The initial model was then divided into two-parts: one depicting the 'Summer' half of the year and the second the 'Winter' half. This was done in an attempt to achieve a clearer illustration of the wave movement and to integrate and gain a clearer understanding of the Full Moon/New Moon oscillation cycle (see figs. 2.103[L] Summer & 2.103[R] Winter).

Fig. 2.103. Bi-Annual Oscillation Cycle: Summer (L) & Winter (R).

The wavelength changes and movements to be seen in these initial models provided an explanation for why a double maximum had been observed to occur in both May and July, at Dn3-1st Floor and Dn3-Hall separated by a Midsummer dip - wavelength shortened as Inflection point rose. (refer back fig. 2.79[c]).

A range of 4.61 m at Dn3-Hall (see Table 2) seemed quite large when compared to all other locations and it was felt that this key location should be up-dated and re-examined. (What set the location apart was the fact that the vector's path followed a course closely aligned to the co-ordinate wall of the house in all three summers in 2015-16-17 and oscillated on one side or the other of it. This awkward movement had required measurements to be taken a metre or so out of alignment, beyond the corner of the building).

Thus, observations were recommenced at Dn3-Hall and Dn3-1st Floor in early December 2023, just before the winter solstice, with the intention of achieving a better statistical comparison with the other locations that had been under surveillance since 2021. Over the 183 days, between 19th Dec'23 to 18th Jun'24, the half-year Range at Dn3-Hall (GL) was 2.30 m and the ±2 SD was 1.45 m; while at Dn3-1st Floor the Range was 1.23 m and the ±2 SD was 1.23 m. These results suggested that at both locations the range had indeed declined in similar proportions to that seen at the other locations. The amplification of the vector at Dn3-Hall was such that it no longer reached the co-ordinate wall, suggesting that in the early years (2015-17) the vector's proximity to the wall, and passing through it, might account for the exceptionally large range recorded at that time - a possibility that needs to be kept in mind. However, the characteristic peak in May followed by a dip at Midsummer continued to be present in the new 2024 data (see fig.2.104 below and compare with figs 2.79[a] & 2.79[b]).

Fig. 2.104. Dn3-Hall & Dn3-1st Floor: Daily Oscillations - Midwinter 2023/4 to Midsummer 2024.

Vertical Sections of the Model divided into two separate halves of the year, 'Summer' & 'Winter', illustrated how the switch in the lunar oscillation pattern was intimately linked to the overall Solar pattern; and demonstrated that the differences and similarities observed at various times of the year between De6-Patio and Pe3[a]-Upper Courtyard were due to the up & down shift of Inflection Points as wavelength changed. 

When the 3-Dimensional context of the model was applied to the 2016-17 'Weekly' plots along the horizontal 'Plan-view' length of vector De6, it confirmed that the hour-glass shape of the series was the result of the wave being draped in a curve over the bedrock and rising up towards the 'Central' Inflection Point within the house;  and further, that most of the locations along vector De6 were situated in the 'Lower' zone, below the 'Central' IP-X and thus, their broad annual movement was from NW in summer to SE in winter (see fig. 2.105 below).

Fig. 2.105. Vector De6 Weekly Locations:      Year - Mar'2016 to Mar'2017.

All of the Vector De6 locations were rechecked to see if their results matched or were at variance with the modelling. At De6-Grass Path the Lunar Oscillation pattern data for 2022 suggested that its vertical position within the overall wave-form was slightly lower than the Patio location. A subtle switch at Midsummer indicated that the 'Low' IP-Λ had briefly shifted upwards and passed through the location (as had been seen to occur at Pe3[a]-Upper Courtyard). This suggested that the vertical height of De6-Grass Path was likely to be no more than ~1.50 m above the 'clay + granite' influencing ground mass (see fig. 2.106 below).

Fig. 2.106. Comparison of Lunar Oscillations at De6-Grass Path & Patio; Mar - Sept'2022.

Further, the position of De6-Grass Path in relation to the 'Central' IP-X had already been estimated to be below it by about 1.50 metres. Taken together these two estimates again suggested a minimum Midsummer wavelength of around 3 metres (2 x 1.50 m) - a close match to the estimated 3.1 metres wavelength derived earlier from Pe3[a]-Upper Courtyard and adding further strength in support of the theory as sketched out in this first Wave Model.

On seeing the overall form sketched-out in the Model there was a dawning realisation that the wave pattern that had been drawn bore the characteristics of a 'Standing Wave'. Consequently, it must be regarded as being the product of two waves travelling in opposite directions. Arriving at such a conclusion required the creation of a slightly more complex series of models that incorporated the changes in wavelength and amplitude already established, but set them within the boundaries of a theoretical pair of opposing 'gravitational' sine waves and simultaneously take account of the orbital position over time of the 'Earth + Moon' micro system relative to the 'Galactic + Sun' macro system. 

Second Stage modelling:

For the beginning of this 2nd Series of models, a notional guide was drawn up depicting the wavelength of the 'Standing Wave' and the Sine Waves every 4 days (±1) throughout the half-year from Midwinter minimum (4.50 m) to Midsummer min. (3.25 m), matching as closely as possible the actual results of the study; with a notional maximum of 6.50 m at Equinox. This allowed matching Sine Wave amplitude to be calculated for a theoretical period starting when Full Moon occurred at or around 12/13th Dec. For simplicity, the differences between lunar and solar months were smoothed - by rounding up the lunar 'fortnights' to 15 days, and setting the half year at a notional 180 days thus, allowing it to be split into six 30-day months (see fig. 2.107 below).

Fig. 2.107. Guide Calculator for Sine Wave & Standing Wave Amplitude based on observational data 2015-24

On completion of this guide, it was then possible to move on to the creation of 'Vertical Section' scale drawings showing the position of the two sine waves in relation to each other approximately every 4 days (±1) together with their resulting 'Standing Wave'. A pair of drawings, each spanning a 15-day 'fortnight', was produced for each of the lunation periods spanning the half-year, replicating the lunar 'Standing Wave' amplification and wavelength as recorded in the investigation. The key situation of the 'Central' Inflection Point was inserted from direct observation data and was used as the starting point from which all the evolving wavelengths throughout the rest of the year were drawn. The initial 'Vertical Section', spanning the Midwinter solstice, placed the 'Central' IP-X at its lowest height (approx. 2.80 m) at the Full Moon on or around 12th/13th December, it then traced how one Sine Wave (orange) moved down as the second Wave (lilac) moved up and how the amplification of the resultant Standing Wave declined from +ve East at Full Moon to zero at 3rd Quarter 'half-moon' and then switched to -ve West as New Moon approached at around 28/29th Dec. (see fig. 2.108[a] below).

Fig. 108[a]. Theoretical Sine Wave movement & actual Standing Wave in the 15-days spanning Midwinter solstice from Full Moon (12/13th Dec.) to New Moon (28/29th Dec.).

The next in the series of Vertical Sections, following on from the above and depicting the 15-days after the late December New Moon, showed wavelength steadily increasing but the two sine waves reversing their direction of movement and causing the Standing Wave's oscillations to shift from -ve West, as amplification reduced back to Zero at 1st Quarter, followed by a switch to +ve East as amplification increased once more and the next Full Moon period approached (see fig. 108[b] below).

Fig. 108[b]. Sine Wave movement & associated Standing Wave, following on from the above, in the 15-days after a New Moon occurs at or around 28/29th December.

Continuing the series of 'Vertical Section' wave drawings, the 'fortnightly' periods from mid-January through to the Spring Equinox demonstrated how the wavelength of all waves steadily increased while the amplification of the Standing wave simultaneously decreased. It showed how the two sine waves reached peak opposition just before the equinox and how point IP-X had risen to attain a height of around 3.00 m above GL. (see fig. 2.109 [a]&[b] below).

Fig. 109[a] & [b]. Sine Wave movement & associated Standing Wave during a typical Lunation Cycle in February {L] & in the lead-up to Vernal Equinox in March {R}.

At the equinox (shown in fig. 109[b] - Left above), the Standing Wave's switch of polarity can be seen to be a consequence of the reversing of the two sine waves movement relative to each other. From the Equinoctial point 'zero', the Standing wave amplification begins to increase once more as wavelength starts to decrease and this process continues throughout the three months of the early summer period. Minimum wavelength (approx. 3.25 m) occurs just prior to the Midsummer Solstice, when the 'Central' IP-X reaches its peak height of approx. 3.40 m above GL. (The cycle spanning the two months - April & May, is shown in figs. 110[a] & [b] and the month of June is shown in fig. 111).

[1] Note: the second half of the year was assumed to be an approximate mirror image of the first half, although a certain degree asymmetry remains a possibility - this is still under investigation.

Fig. 110[a] & [b]. Sine Wave movement & associated Standing Wave during Summer Lunation Cycles in April {L] & in May {R}.

Fig. 111. Sine Wave movement & associated Standing Wave during a Lunation Cycle at Mid-Summer in June.

Third Stage Modelling:

In the next stage of modelling the theoretical data for the whole sequence of lunations from mid-winter to mid-summer was arranged in such a way that the 'bi-annual' oscillating wave pattern could be seen to be a reflection of the very similar 'Fortnightly' lunar cycle. In addition it showed the full rising sequence of IP-X over each six-month period - which amounted to a total vertical range ≥ 0.60 m (see fig. 112 below).

Fig. 112. Bi-annual cycle of Expansion & contraction of wavelength and amplitude depicted for monthly Full or New Moons to show how similar it is to the 'fortnightly' lunation cycle within. 

To test the predictive ability of the model, particular areas of interest on the site were targeted to see if they conformed or were in disagreement with it. Observations from four crucial lunation cycles in year 2024 were selected from the daily horizontal sections of De6 (each connecting five points along a 15-metre section of the vector - from De6-Lawn to De6-Grass Path). The first spanned the period when wavelength was longest (Spring Equinox), the second when it was shortest (Midsummer), the third when it was once again at its longest (Autumn Equinox) and the fourth when it became shorter yet again (Winter Solstice). The four graphs, suggested that the modelling was essentially correct in its predictions. (see figs. 113 [a], [b], [c] & [d]).

Fig. 113[a] & [b]. Vector De6: 5 points along a 15 metre length in 2024, showing horizontal distribution graph at Vernal Equinox - Longwave (Left) and Midsummer - Shortwave (Right).

Fig. 113[c] & [d]. Vector De6: 5 points along a 15 metre length in 2024, showing horizontal distribution graph at Autumn Equinox - Longwave (Left) and Midwinter - Shortwave (Right).

Fourth Stage Modelling:

The Standing Wave oscillation pattern shown in fig. 112 was combined to create two Vertical Section drawings, one 'Summer' and one 'Winter'; each with the potential to cross-check how the oscillations aligned with actual data measurements taken at seven of the key locations in the period between 2015 to 2024. A house section was included alongside at the same scale and the seven locations were arranged within its outline in ascending height above ground mass. The Standing Wave oscillations showed the movement in one half of the year to be a mirror image of the second half; progressing from summer solstice (left) to winter solstice (right) as one oscillating pattern (see figs. 114[a] & [b] below).

Fig. 114[a] & [b]. Standing Wave Oscillations in each lunation: Summer (Left) & Winter (Right).

A review of the statistics accompanying each of the seven locations listed on the right in figs 114[a] & [b} showed that amplification was a consistently greater in 2015-17 compared to 2021-24. This suggested that a steady 5 - 15% decrease in amplification may have taken place each year since the last Lunar standstill.

A closer examination of the data for Pe3[a]-Upper Court Yard spanning 2021 to 2024 hinted that such a rate of decrease might indeed be the case (see table opposite) but there was insufficient continuity of data over a wide enough spread of locations during the investigation period to give much positive support for such speculation.

The 'First Stage Guide' shown in fig. 107 had been primarily drawn up using the 2021-24 data, but nevertheless, the guide's table could easily accommodate swings involving slightly less extreme shortening of wavelength in those early years - which in turn might be expected to produce greater amplification.  

The evolving tilt of the lunar orbital plane in relation to the Earth's orbital plane around the Sun could be a factor causing these differences [1]

[1] It is worth remembering that the study started just before the 'Lunar Standstill' of 2015 - when max. declination was 18.50° (3rd Jan.) & min. declination -18.577° (18th Jan.). For a large part of this investigation Lunar declination steadily increased, at approx. 5 to 7% p.a. but slowed on the approach to Maximum declination which occurred at the 'Lunar Standstill' in the spring of 2025, when it reached 28.710° (7th Mar.) and -28.719° (22nd Mar.).

But on the other hand, the timing of these differences may simply be a coincidence – with such large-scale periods involved it is not possible to say which with any confidence without further long-term research. 

Fifth Stage Modelling:

Each sheet in the 'Fortnightly' lunation cycle was viewed against a background layer of graph paper so that the distance of the Standing Wave from the mean could be measured at each 3 or 4-day point. This allowed documentation of horizontal plane slices in a time series: each at vertical intervals of 0.25 m, rising to a maximum height of 4.50 metres. An illustrative example based on the fortnight spanning the Winter Solstice is shown in Fig. 115 below. (for the full series of 12, spanning the half year [Dec. to Jun.] see Appendix II).

Fig. 115. First in a series of 12 'Fortnightly' oscillations shown with their ± distance from the Mean.

On acquiring the ±oscillation distance data for the whole half-year, it became possible to transfer it to a spreadsheet arranged to cover the 15-month period from just before the winter Solstice to just after the Vernal Equinox one year later (assuming a high degree of symmetry existed between each half of the year). By doing so, graphic modelled images of individual 'Horizontal Sections' over time could be produced - allowing them to be grouped according to the particular and varied patterns of lunar oscillation they displayed. The modelling suggested there were possibly Five key Patterns of which to be aware (see fig. 116 below).

Fig. 116. Oscillation Vertical slices acquired from spreadsheets arranged in 5 distinct modelling groups.

These 'Five Key Patterns' (above) could then be compared with the actual annual lunar oscillation patterns obtained from all field observations and thus, permit individual locations to be ranked according to their apparent height above the local influencing mass and allow cross-referencing to the vertical arrangements modelled earlier.

Looking back over the years at De6-Grass Path, (lying at a vertical height of between 0.75 - 1.50 metres above ground mass) the variable lunar oscillation pattern observed there appeared to belonging mainly to Group 2 of the model (see fig. 117 below) although occasionally becoming more akin to Group 1 or 3. This suggested that changes from shortwave to longwave or vice versa, together with the height of IP-X, over the course of any quarter-year period were variable and not necessarily linear (refer back to fig. 106). 

Fig. 117. De6-Grass Path Oscillation Pattern in Year from March'22 to April 2023.

A more definite Group 2 pattern was recorded at De6-Lawn (refer back to fig. 60) and also at Pe3[a]-Upper Courtyard (refer back to fig. 61): the latter not only at ground level but also extending upwards to a height of 1.05 m (refer back to fig. 95 for 2021-22 graph).

Although Pn2-Veg. Garden stood at a not too dissimilar height to both  De6-Lawn and Pe3[a]-Upper Courtyard, when the original 2015-17 data from it was re-examined and compared to their modelling patterns, anomalies appeared to exist that could only be resolved by regarding South and SSW as a 'positive' direction and North and NNE as 'negative'. It was at this stage in the study that the polarity of data for this single vector direction was retrospectively reversed (as was noted under Methods). The three other vectors remained unaltered.(The reversed bearings for the year Nov., 2016-17 are shown in fig. 118[a] Left below). 

To test the validity of the new compass arrangement observations were recommenced at Pn2-Veg. Garden in Mar., 2022: the confirmatory results for the 15-months to Sept., 2023 can be seen in figure 118[b] Right below.

Fig. 118[a] & [b]. Pn2-VegGarden Yearly Oscillations in 2016-17 (Left) & 2022-23 (Right).

The problem of the 'shielding' of lunar oscillations within the house appeared to be solved by taking only the Full Moon data from the model's Spreadsheet i.e., omitting the New Moon data. Thus, when the Group 3 & 5 height data was combined in a single oscillation graph (see fig. 119[a] Left below) it produced a pattern similar to that recorded over several years within the house at Dn3-Hall, and at Dn3-1st Floor (see fig. 119[b] Right below) - although not displaying quite the asymmetry of the latter.

Fig. 119[a] Left - Model Groups 3 & 5 combined. Fig. 119[b] Right - Dn3-Hall & 1st Floor 2015/16/17.

With the modelled New Moon oscillation data included, the Group 3 pattern could be seen to be a good match to the 2022-23 graphs derived from the vertical plane height of 2.66 m above GL for Pe3[a]-Upper Courtyard  (see Fig. 120 below).

Fig. 120. 15-month Lunar Oscillation Pattern at h. 2.66 m: Pe3[a]-Upper Courtyard  Dec'22 - Apr'24.

Interestingly, the difference in height a.s.l. between Pe3[a]- Upper Courtyard - Roof and Dn3-Hall, was approx. 3.0 metres and they stood about 13 metres apart and yet both belonged to the same Group 3 pattern. Such a geometric arrangement suggested that the whole 'Grid & Lattice' wave structure had an approx. 13° tilt upwards towards the SW over the distance between these two locations i.e., it was rising over the mass of the granite outcrop (particularly steep between the two) and was following the upward slope of the valley side. This added further strength to the theory outlined earlier that the underlying slope angle was the key factor influencing which segment of a vertical wave was being observed at 'Ground Level'. (Refer back to Dn3-Hall & 1st Floor shown in figs. 70 and 71[a, b, c, & d])

The 'Transition' Group 4[a]&[b] pattern was derived from modelling data representing heights from 2.75 m to 3.25 m above ground mass and thus spanning the 'Central' IP-X region. A site location corresponding closely to this region was De6-Patio. The results from the three years 2022, 2023, and 2024 reflected the sensitivity of this particular location to any slight up-or-down movement of 'Central' IP-X, which was possibly due to changes in wavelength. In the winter of 2021/22 Full Moon oscillations consistently shifted to the West – indicating that IP-X was below the location; and yet, after the Spring Equinox switch of polarity, throughout the summer of 2022 the Full Moon oscillations continued to shift West – indicating that the 'Central' IP-X must have moved up above the location. Such a pattern clearly identified De6-Patio as belonging to transition Group 4[a]&[b] (see fig. 121[a] Left below). But why the trend line of the group drifts slightly eastwards from the Spring Equinox towards midsummer is unclear; (possibly it is connected with Full Moon perigees occurring on 14th June & 13th July?)  

Fig. 121[a] & [b]. De6-Patio Lunar Oscillation Pattern : 15-months Dec'21 to Apr'23 (Left) and Dec'22 to Apr'24 (Right).

In the following winter of 2022/23 the Full Moon oscillations, although comparatively small, maintained their tendency to shift to the West – suggesting that IP-X was relatively close but had moved down again to just below the location as it had done in the previous winter. After the Spring Equinox of 2023, Full Moon oscillations once again swung West, although they did not appear to be as large as in the previous summer (see above Fig. 121[b] Right). 

However, the De6-Patio oscillations were also being monitored in the Vertical Plane on a daily basis and the supplementary sectional graph spanning the period from 15th May to 22nd June 2023 showed with greater clarity that the Full Moon westerly swing was indeed still being maintained (see fig. 122 below).

Fig. 122. De6-Patio: Vertical Plane Daily - 15th May to 22nd June 2023.

In the following winter (2023/24) the first two Full Moon oscillations after the Autumn Equinox switch of polarity swung towards the East which was unusual - suggesting that the 'Central' IP-X must still be above the location – a movement not seen in previous years (refer back to fig. 121[a] & [b]). However, for the remainder of the winter period the lunar oscillations were minimal and indistinct suggesting IP-X must be hovering at or very close to the level of De6-Patio. It was only in late February 2024 that distinct swing to the west at Full Moon was recorded - indicating that IP-X had indeed moved down to just below the location. (see fig. 123 below). 

Fig. 123. De6-Patio Lunar Oscillation Pattern : 16-months Sept'23 to Dec'24.

The positional height of the 'Central' IP-X was more clearly indicated in a Horizontal Plane graph depicting a 15-metre segment of vector De6 in lunation 1251, prepared from daily observations at five locations along its length between 6th Feb. to 13th Mar. 2024. The graph showed the subtle pivoting movement either side of IP-X - with a small Full Moon swing to the NW at the De6-Patio and a simultaneous shift to the SE at De6-Grass Path (see fig. 124 below).

Fig. 124. Vector De6, Horizontal Plane 15-metre segment in Lunation 1251, just prior to Spring Equinox 2024.

Immediately after the 2024 Spring Equinox, during lunations 1252/53, the Full Moon swung to the NW at De6-Patio giving an indication that 'Central' IP-X was once more just above the location and the regular polarity switch to 'Summer' mode had taken place (refer back to fig. 123 above). Again, this was more clearly highlighted by a cross reference to the movements in the De6 Horizontal Plane graph covering daily positions at the Vernal Equinox 2024. In the graph all three locations to the SW of the co-ordinate, including De6-Patio, showed the polarity switch to Full Moons oscillating in the West – indicating that IP-X was now above them all and thus, they were below in the Mid-Zone (see fig. 125 below) .

Fig. 125. Vector De6, Horizontal Plane 15-metre segment in Lunation 1252, spanning the Spring Equinox 2024.

Throughout the summer of 2024, from May to September, lunar oscillations were relatively large compared to the winter period but oddly, the New to Full Moon swing was indistinct and did not appear to conform to the usual pattern of events: the whole group's trend line instead showing a steady drift to the west peaking at the Aphelion in July, followed by a reversal back Eastwards as Autumn Equinox approached (refer back to fig. 123 above) . This was a pattern more akin to that observed within the building i.e., a diminished New Moon influence. Again, after the 2024 Autumn Equinox the two Full Moon oscillations in late September and October swung towards the East suggesting the 'Central' IP-X was still above the location as had occurred in the previous year. 

To assist in visualizing the crucial, changing vertical positions of IP-X a sectional drawing used earlier (see fig. 2.46 – Jul'15) was adapted to create a pair of new drawings. The original showed section BB through the house and a series of 5 vertical sections through vector De6, each rotated through 90°.

In the first of the new drawings (Winter) the approximated changes in wavelength and associated vertical forms of the Standing Wave were again shown rotated through 90° and superimposed on each but now arranged in groups of three at each location along vector De6, each group representing the monthly increase from a nominal Λ 3.25 m at Midwinter, to Λ 4.3 m in mid-January, to Λ 6.0 m just prior to the Spring Equinox (see fig. 126[a] below).

In the second of the drawings (Summer) the three Standing Wave wavelength groups were shown with polarity reversed and decreasing from Λ 6.0 m in mid-April (just after the equinox) to 4.3 m in mid-May to Λ 3.25 m at Midsummer (see fig. 126[b] below).

Fig. 126[a].

Fig. 126[b]

Section BB through house & Vector De6 showing monthly rise of IP-X from Mid-winter (wavelength minimum) to Spring Equinox (maximum) through to Mid-summer (wavelength minimum).

The pair of scale drawings shown above give some indication of the rise of IP-X from its lowest point at Mid-winter to its highest point at Mid-summer by taking the situation at locations 4 (Patio) and 2 (Grass Path) and magnifying them within the two circled insets. Careful examination of these insets reveals how relatively minute changes in the height of IP-X can produce dramatic differences in the East/West annual pattern of lunar events recorded – particularly at De6 Grass Path.

Thus, why a slight reduction in the rise and fall of IP-X has taken place now after so many years of consistently switching so precisely at the equinox, it is not possible to say with any certainty but it should perhaps be noted that the next 19-year Lunar Standstill maximum occurs in March 2025, only a few months after this date. In addition, a rare (once every 175 years) gravitational line-up of all 7 planets in one segment of the night sky begins in this period and reaches a peak on 28th February 2025. It is intended that observations along De6 will continue in the coming years to monitor the situation there and establish whether the Standing Wave and associated Sine waves are evolving or revert to their former pattern.

The almost complete absence of a Lunar oscillation pattern from within the mass of the building has already been emphasised and clearly illustrated; but it was noticed that records of the wave oscillation pattern at certain exterior locations displayed a much greater day-to-day variation than at others. These more subtle differences between locations could not be wholly attributable to height/position on the wave. It was thought that one possibility that might account for the variability was the lower mass density of the materials underlying particular locations. For instance, over the period from March to September 2022 there was a much greater day-to-day variation at De6-Grass Path, when compared to De6-Patio; it was speculated that the highly variable rainwater content of the clay/loam topsoil might be the factor contributing to this difference when compared to the much more stable, well drained, non-absorbent, substantial mass of the 'Paving, concrete and rubble' layer on the South side of the house at De6-Patio (refer back to fig.106).

Another pair of locations showing a similar contrast in their underlying ground mass density were Pn2[a]-Veg Garden compared with Pe3[a]-Upper Courtyard - the former, with a substantial layer of loam beneath it and with rainwater run-off from the garage, displayed a much greater day-to-day oscillation pattern when compared to the paving and bedrock of the latter (see fig. 127 below).

However, although worthy of note, the means to fully test these geophysical subtleties was not readily to hand and they were felt to be a feature secondary to that of establishing the wave dimensions and broad pattern of movement and that their study should be left for more specialized investigators to pursue. 

Fig. 127. Comparison of Lunar oscillation pattern at Pn2-Veg Garden & Pe3[a]-Upper Courtyard: 'Summer' 2022.