diff --git a/docs/weather-and-science/quality-mechanisms/spv-full-documentation.mdx b/docs/weather-and-science/quality-mechanisms/spv-full-documentation.mdx
index 035471a4..a162126e 100644
--- a/docs/weather-and-science/quality-mechanisms/spv-full-documentation.mdx
+++ b/docs/weather-and-science/quality-mechanisms/spv-full-documentation.mdx
@@ -222,7 +222,7 @@ To successfully pass all SPV checkpoints, a user must ensure the following:
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) |
| Orientation | North | West | East | South |
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The weather station is ideally installed. These are the key points:
- It is deployed in an open area, with surrounding obstacles (e.g., buildings) located at a distance at least two/four/seven times the difference in height between the obstacle and the station. This setup eliminates any potential impact on temperature/precipitation/wind measurements
@@ -241,7 +241,7 @@ The weather station is ideally installed. These are the key points:
| Precipitation | Small Obstacles (0.5/1) | - | Small Obstacles (0.5/1) | - |
| Solar Irradiance | No Obstacles (1/1) | - | No Obstacles (1/1) | - |
| Orientation | North | - | West | - |
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There are multiple issues in this SPV photo set:
- The station is mounted on a very short mast, positioning it close to the roof surface. This setup significantly affects temperature readings due to heat emitted by the concrete, leading to an overestimation of daytime temperatures. Additionally, placing the station so close to a surface usually results in underestimated wind speeds, as surface friction slows down the airflow.
@@ -263,7 +263,7 @@ There are multiple issues in this SPV photo set:
| Precipitation | Small Obstacles (0.5/1) | No Obstacles (1/1) | Small Obstacles (0.5/1) | Small Obstacles (0.5/1) |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | Significant Obstacles (0/1) | Small Obstacles (0.5/1) |
| Orientation | North | West | East | South |
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This is an apparently satisfactory deployment. And it should be noted that, although the photos are in portrait mode, they adequately capture the surrounding area. However, there is a series of issues, which are:
- The station is mounted on a mast that provides approximately 1 meter distance from the roof. However, the mast is installed on top of a chimney, which, along with the limited distance, can introduce errors in temperature, humidity, and wind measurements under certain conditions.
@@ -282,7 +282,7 @@ This is an apparently satisfactory deployment. And it should be noted that, alth
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Solar Irradiance | Small Obstacles (0.5/1) | No Obstacles (1/1) | - | - |
| Orientation | West | East | - | - |
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This particular station appears to fail to meet several of the SPV mechanism’s criteria:
- The station is mounted on a short mast over a black surface. The temperature measurements, especially during the day, are significantly affected. At the same time, the airflow may be influenced by the building on which the station is mounted
@@ -303,7 +303,7 @@ This particular station appears to fail to meet several of the SPV mechanism’s
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Solar Irradiance | Significant Obstacles (0/1) | Significant Obstacles (0/1) | - | - |
| Orientation | East | South | - | - |
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This appears to be a correctly installed weather station. However, there are two critical points that prevent it from receiving an excellent score:
- The absence of photos depicting the remaining points of the horizon (north and west).
@@ -321,7 +321,7 @@ This appears to be a correctly installed weather station. However, there are two
| Wind | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | - |
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | - |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | - |
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This station could have received the maximum score, but once again, it is the details that prevent the user from achieving a perfect rating:
- The three photos show almost a 180° range around the station. Although the photo depicting the south actually shows only part of it, it can be concluded that the horizon is clear of obstacles. This is not the case in the photo showing the northern horizon, where some nearby trees are visible. Ideally, we would want a photo covering the north.
@@ -340,7 +340,7 @@ This station could have received the maximum score, but once again, it is the de
| Precipitation | - | - | - | - |
| Solar Irradiance | - | - | - | - |
| Orientation | - | - | - | - |
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This may be the perfect installation. However:
- The station is not visible in any of the photos. This means that we do not know which point of the horizon each photo depicts, the exact location and height of the station, or whether the location shown is indeed that of the station.
@@ -358,7 +358,7 @@ This may be the perfect installation. However:
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Orientation | West | South | - | - |
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Rooftops are among the best places to install a station in urban environments; however, all basic installation requirements must be met. In this particular case:
- The station is mounted on a very short mast in front of a ledge. This means it is heavily affected by heat from the concrete surfaces, while its proximity to the floor and the ledge increases surface roughness, slowing down or even altering the direction of airflow.
@@ -378,7 +378,7 @@ Rooftops are among the best places to install a station in urban environments; h
| Precipitation | No Obstacles (1/1) | Significant Obstacles (0/1) | - | - |
| Solar Irradiance | No Obstacles (1/1) | Significant Obstacles (0/1) | - | - |
| Orientation | West | East | - | - |
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This station is installed in a poor location, and not all the photos are informative:
@@ -398,7 +398,7 @@ This station is installed in a poor location, and not all the photos are informa
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Solar Irradiance | Small Obstacles (0.5) | No Obstacles (1/1) | - | - |
| Orientation | West | North | - | - |
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This station is located between buildings and their courtyards, which creates various problems:
@@ -419,7 +419,7 @@ Large trees create wind shade, while the air can be funnelled between the buildi
| Precipitation | No Obstacles (1/1) | - | - | - |
| Solar Irradiance | No Obstacles (1/1) | - | - | - |
| Orientation | West | - | - | - |
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This is probably an underrated station because:
- The user did not upload one photo for each point of the horizon.
@@ -439,7 +439,7 @@ This is probably an underrated station because:
| Precipitation | - | No Obstacles (1/1) | No Obstacles (1/1) | Small Obstacles (0.5/1) |
| Solar Irradiance | - | No Obstacles (1/1) | No Obstacles (1/1) | Significant Obstacles (0/1) |
| Orientation | - | North | East | West |
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This station is located in an interesting area but installed in a very hasty manner:
- Two photos show the same point of the horizon.
@@ -460,7 +460,7 @@ This station is located in an interesting area but installed in a very hasty man
| Precipitation | No Obstacles (1/1) | - | No Obstacles (1/1) | No Obstacles (1/1) |
| Solar Irradiance | No Obstacles (1/1) | - | No Obstacles (1/1) | No Obstacles (1/1) |
| Orientation | South | - | West | North |
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This station could have been among the excellent ones, but there are reasons why this is not the case:
- The station is very close to a chimney, which means that when the chimney is active, the temperature readings will be incorrect. The chimney may be permanently inactive, but this is something the reviewer cannot know.
@@ -479,7 +479,7 @@ This station could have been among the excellent ones, but there are reasons why
| Precipitation | Significant Obstacles (0/1) | Significant Obstacles (0/1) | Significant Obstacles (0/1) | Significant Obstacles |
| Solar Irradiance | Significant Obstacles (0/1) | Significant Obstacles (0/1) | Significant Obstacles (0/1) | Significant Obstacles (0/1) |
| Orientation | East | North | South | West |
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This station is clearly tucked inside a forest, placed on the balcony of a house, and this creates multiple problems:
- With many walls around it, the air cannot circulate freely, and some of these walls may heat up during the day, warming the adjacent air.
@@ -499,7 +499,7 @@ This station is clearly tucked inside a forest, placed on the balcony of a house
| Precipitation | Significant Obstacles (0/1) | Significant Obstacles (0/1) | - | - |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | - | - |
| Orientation | North | West | - | - |
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This station is installed at a very high position, which is recorded by the SPV tool and is one of the station’s strong positives. However, mounting it on a pillar can be problematic:
- The pillar may block part of the precipitation when the wind blows from certain directions.
@@ -520,7 +520,7 @@ This station is installed at a very high position, which is recorded by the SPV
| Precipitation | Small Obstacles (0.5/1) | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) |
| Solar Irradiance | Small Obstacles (0.5/1) | No Obstacles (1/1) | Small Obstacles (0.5/1) | No Obstacles (1/1) |
| Orientation | East | West | South | North |
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This is a type of station installation we encounter often. Although the total height of the station from the ground matches the recommended mast height, the installation is problematic:
- The fence creates friction with the air, causing the flow to slow down and generate turbulent currents that make the anemometer record different wind directions and usually lower wind speeds than the prevailing ones.
@@ -540,7 +540,7 @@ This is a type of station installation we encounter often. Although the total he
| Precipitation | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | - |
| Solar Irradiance | No Obstacles (1/1) | No Obstacles (1/1) | No Obstacles (1/1) | - |
| Orientation | West | North | East | - |
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This station represents another common deployment method we often observe. Despite being installed on a roof, the recommended installation guidelines have not been followed:
- The photo that would depict the southern horizon is missing. If it were available, it would likely show that the roof reaches a level higher than the station, blocking at least the airflow (if not also sunlight when the sun is low, for example). If the station were placed at the roof’s peak on a mast of at least 1.25 m, the roof would not have a significant impact on wind and temperature measurements.
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