Following Karls' Families

Migration Maps, Tõnn, Greater Spotted Eagle and Black Storks
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Anne7
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Re: Following Karl's Family

Post by Anne7 » March 9th, 2019, 3:25 pm

Here is Karula's afternoon tracker map:

TRACKER MAP
Karula_March09_afternoon
https://drive.google.com/open?id=1_bX9G ... sp=sharing

Image

The latest known location.
I do not like to see so little movement.
But I think Karula is just filling his belly here.
Image

That area in Zoom Earth:
Image
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Post by Treia » March 9th, 2019, 6:02 pm

:wave:
Bird-Map update for Karula 09.03.2019

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Post by Gigi » March 9th, 2019, 7:02 pm

Liz01 wrote:
March 9th, 2019, 6:54 am
Good Morning Gigi :hi:

The camera is still offline. The storks will repair their nest themselves, as every year :2thumbsup:
they will have a lot of work to do on that nest! :nod:

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Anne7
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Post by Anne7 » March 9th, 2019, 7:02 pm

Treia wrote:
March 9th, 2019, 6:02 pm
:wave:
Bird-Map update for Karula 09.03.2019
Many thanks, Treia :2thumbsup:

Karula
Last data: 09.03.2019
Distance: 330 km (+ 11 km in 1 day), same area near Tall al Manţaḩ in the Jordan River Valley.

Edit: Hellem :wave: :mrgreen:
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Post by Hellem » March 9th, 2019, 7:04 pm

:hi:

09.03 New update by Karula - 330 km (+11 km), the same area near Tal Al-Mantah in the Jordan River Valley

Anne :wave: :laugh:

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Anne7
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Post by Anne7 » March 9th, 2019, 7:17 pm

This afternoon, I made an attempt to understand the X, Y and Z axes, mentioned in the tracker maps.
I wanted to know what it means for the inclination (rotation) of the body of the bird (the transmitter).

I made this drawing (starting from this info + drawing: https://en.wikipedia.org/wiki/Flight_dynamics )

Image


The six degrees of freedom:
Translational motion: (Translational motion is the motion by which a body shifts from one point in space to another.)
Moving forward and backward on the X-axis. (Surge)
Moving left and right on the Y-axis. (Sway)
Moving up and down on the Z-axis. (Heave)
Rotational motion:
Tilting side to side on the X-axis. (Roll)
Tilting forward and backward on the Y-axis. (Pitch)
Turning left and right on the Z-axis. (Yaw)
https://en.wikipedia.org/wiki/Six_degrees_of_freedom


This very helpful video animation is about Roll - Pitch - Yaw
https://www.youtube.com/watch?v=rlVw-SNU8cM

Image
© Mark Wood


The accelerometer X Y Z graph for Karula today, so far:
Image
I see a lot of pitching today (transmitter tilting forward and backwards, on the Y-axis). Catching food?

:hi: kuhankeittäjä, are you reading this?
Is all this correct? :help:
“Clearly, animals know more than we think, and think a great deal more than we know.”
— Irene Pepperberg

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Anne7
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Post by Anne7 » March 9th, 2019, 9:16 pm

Here is Karula's tracker map for the complete day

TRACKER MAP
Karula_March09_CompleteDay
https://drive.google.com/open?id=1E8ytf ... sp=sharing

He flew back to his usual night area. :D :thumbs:

Image


TODAY'S SUMMARY MARCH 09

KARL (Karl is probably in South Sudan)
No new data (Last data: 15.11.2018)

MARU
Maru perished on February 25th at about 13:00, near the Al Ballanah wastewater ponds in Egypt.
Last flight data: 25.02.2019


PÄIKE
No new data (Last data: 07.10.2018)

KARULA
Birdmap was set to spring migration and a new distance measurement started from 15.02.2019 (Total distance on 14.02.2019: 6606 km)
Last data: 09.03.2019
Distance: 330 km (+ 11 km in 1 day), same area near Tall al Manţaḩ in the Jordan River Valley.
Weather report on 09.03 at 10:00
Temp: 18°; at 15:00 20°
Precipitation: 0 mm
Humidity: 40%
Air pressure: 1026 hPa
Wind 100 m - SE (06 km/h); at 15:00 NW (05 km/h)
Wind 250 m - SE (05 km/h); at 15:00 NW (05 km/h)
Wind 500 m - SE (06 km/h); at 15:00 NW (06 km/h)
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Post by kuhankeittäjä » March 10th, 2019, 8:38 am

Anne7 wrote:
March 9th, 2019, 7:17 pm
This afternoon, I made an attempt to understand the X, Y and Z axes, mentioned in the tracker maps.
I wanted to know what it means for the inclination (rotation) of the body of the bird (the transmitter).

<snip>

The accelerometer X Y Z graph for Karula today, so far:
Image
I see a lot of pitching today (transmitter tilting forward and backwards, on the Y-axis). Catching food?

:hi: kuhankeittäjä, are you reading this?
Is all this correct?
Yes, it's correct. Karula moves its front side down and up again. Evidently, it is feeding.

There's a strong undersampling in time and likely much more beak movements down in reality.

For feeding the velocity should indicate zero and altitude be nearly constant.

The total acceleration should be c. 980, if the bird is not changing its position rapidly, and higher if it moves itself from a static observation position to an immediate catch position (strikes to have a fish) during the measurement. The total acceleration can be calculated as a square root of sum of squares of three acceleration components, and is not provided by the transmitter.

Pitch, yaw and roll angles can further be calculated from the acceleration component (m/s2) ratios and velocity parameters (m/s, angle).

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Post by Anne7 » March 10th, 2019, 11:29 am

March 10th

Good morning, everyone :wave:

Thank you very much, kuhankeittäjä! :thumbs:

I am glad that I now understand which motion each of the three lines on the graph display: Roll - Pitch - Yaw
Unfortunately, the exact formulas for calculating the 'total acceleration' and the 'rotational motion angles' that you mention here are a bit too complicated for me. :mrgreen:

To consult the graph can be very reassuring if we see hardly any movements on the tracker map for several hours.
If the velocity is zero and the altitude is nearly constant and we see pitching on the Y-axis, Karula is catching fish. Or frogs. :2thumbsup:

You are right: because the data are recorded only every fifteen minutes, of course, we only see a part of the motions.


Here is Karula's morning tracker map:

TRACKER MAP
Karula_March10_morning
https://drive.google.com/open?id=1wwwNt ... sp=sharing

Image
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Post by kuhankeittäjä » March 10th, 2019, 2:26 pm

Anne7 wrote:
March 10th, 2019, 11:29 am
March 10th

I am glad that I now understand which motion each of the three lines on the graph display: Roll - Pitch - Yaw

Hi Anne

You are welcome. But maybe I should have more emphasized that the directional parameters Roll - Pitch - Yaw are rotational angles, expressed in radians. Acceleration components x - y - z are changes of velocity plus changes of existing external acceleration because of changing direction of transmitter in space, both expressed in meters per second squared.

What is measured by the system and displayed in graphs is acceleration. You can read y-acceleration in such a way that it qualitatively tells of beak down / beak up rotation (pitch), because this rotation causes different portion of the Earths gravity acceleration becoming a part of y-component of acceleration.

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Post by Jo UK » March 10th, 2019, 4:43 pm

Tracker map for Karula- map for March 10 from 0600



KARULA

https://drive.google.com/open?id=102wVt ... sp=sharing

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Post by sova » March 10th, 2019, 8:23 pm

Good evening :hi:
Jo ... Thanks for the tracker map :2thumbsup:

Anne, Karula's data is available
Karula spends a lot of time at almost the same place

Wish you all a nice evening :wave:

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Post by Anne7 » March 10th, 2019, 9:26 pm

Good evening, everyone

kuhankeittäjä, thank you very much for your additional explanations. :thumbs:
Rotations (or rotational angles) in radians (or converted to degrees), OK, I understand that.
But "changes of existing external acceleration in meters per second squared"?
Please don't mind me, kuhankeittäjä. It goes beyond my understanding.
It's entirely my fault, I should have paid more attention to what they taught us at school, long ago... :mrgreen:
I am anyway glad that we can read the y-acceleration in such a way that it qualitatively tells beak down/beak up rotation (or pitch).

Jo, many thanks for the tracker map. :2thumbsup:
sova wrote:
March 10th, 2019, 8:23 pm
... Anne, Karula's data is available
Karula spends a lot of time at almost the same place ...
Thanks a lot, Sova! :wave:

Here is Karula's tracker map for the complete day:

TRACKER MAP
Karula_March10_CompleteDay
https://drive.google.com/open?id=1u-8It ... sp=sharing

Back to his usual night area.
Image

You are right, Sova. Karula spent many hours here. (from 07:11 until 15:12)
Image

A view via Zoom Earth on the field where Karula spent such a long time. What was he doing (or catching) there? :puzzled:
In fact, we do not know if it is still a field nowadays, the satellite views are not recent. Is there a new pond?
Image


TODAY'S SUMMARY MARCH 10

KARL (Karl is probably in South Sudan)
No new data (Last data: 15.11.2018)

MARU
Maru perished on February 25th at about 13:00, near the Al Ballanah wastewater ponds in Egypt.
Last flight data: 25.02.2019


PÄIKE
No new data (Last data: 07.10.2018)

KARULA
Birdmap was set to spring migration and a new distance measurement started from 15.02.2019 (Total distance on 14.02.2019: 6606 km)
Last data: 10.03.2019
Distance: 342 km (+ 12 km in 1 day), same area near Tall al Manţaḩ in the Jordan River Valley.
Weather report on 10.03 at 10:00
Temp: 18°; at 15:00 18°
Precipitation: 0 mm
Humidity: 30%
Air pressure: 1022 hPa
Wind 100 m - W (04 km/h); at 15:00 W/NW (19 km/h)
Wind 250 m - W (05 km/h); at 15:00 W/NW (19 km/h)
Wind 500 m - W (05 km/h); at 15:00 W/NW (18 km/h)
“Clearly, animals know more than we think, and think a great deal more than we know.”
— Irene Pepperberg

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Post by Hellem » March 10th, 2019, 10:31 pm

:hi:
10.03 New update by Karula - 342 km (+12 km), the same area near Tal Al-Mantah in the Jordan River Valley

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Post by Anne7 » March 10th, 2019, 10:50 pm

Hellem wrote:
March 10th, 2019, 10:31 pm
:hi:
10.03 New update by Karula - 342 km (+12 km), the same area near Tal Al-Mantah in the Jordan River Valley
Thank you, Hellem :hi: :thumbs:
I completed the above summary.

Still no Karl on birdmap.
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— Irene Pepperberg

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Post by kuhankeittäjä » March 11th, 2019, 7:18 am

Anne7 wrote:
March 10th, 2019, 9:26 pm
Good evening, everyone

kuhankeittäjä, thank you very much for your additional explanations. :thumbs:
Rotations (or rotational angles) in radians (or converted to degrees), OK, I understand that.
But "changes of existing external acceleration in meters per second squared"?
<snip>
Sorry for my unclear writings. I try again: There are two accelerations to be measured jointly and inseparably: One is due to a change of movement (acceleration) of the bird itself and another due to the Earth's gravity, which is acceleration as well. If the bird is not moving or moves at constant velocity only, the measured acceleration components indicate in which direction is "down" in the Earth's gravity field relative to the data logger. I hope this helps you.

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Post by Liz01 » March 11th, 2019, 8:53 am

Anne7 wrote:
March 10th, 2019, 10:50 pm
............ Still no Karl on birdmap.
Good Morning Anne, Hellem and all :hi:

and thanks a lot for updates :2thumbsup:

Anne, Eedi is still in his wintering area :puzzled: So Karl will also still be in his area?

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Post by Anne7 » March 11th, 2019, 10:29 am

March 11th

Good morning, everyone.

kuhankeittäjä, thank you again. :2thumbsup:
Yes, this explanation helps.
Liz01 wrote:
March 11th, 2019, 8:53 am
... Anne, Eedi is still in his wintering area :puzzled: So Karl will also still be in his area? ...
Hello, Liz :wave:
We have to wait patiently. :mrgreen:
Eedi and Karl will show up soon, I hope.
I'm glad that there was an update for Eedi.


The morning data session for Karula failed
Last data received by GPRS: 2019-03-11 03:11:52 (UTC+2)
Next data session expected: 2019-03-11 15:11:52 (UTC+2)

I will keep you informed.
“Clearly, animals know more than we think, and think a great deal more than we know.”
— Irene Pepperberg

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Post by Liz01 » March 11th, 2019, 10:56 am

Anne7 wrote:
March 11th, 2019, 10:29 am
.............Hello, Liz :wave:
We have to wait patiently. :mrgreen: ..........
I do not know that word :mrgreen:
Anne7 wrote:
March 11th, 2019, 10:29 am
Eedi and Karl will show up soon, I hope.
I hope it too :bow:

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Post by Anne7 » March 11th, 2019, 3:16 pm

Birdmap update for Karula
Last data: 11.03.2019 (night/early morning)
Distance: 342 km (+ 0 km), same (night) area near Tall al Manţaḩ in the Jordan River Valley

Image


Here is Karula's tracker map for this afternoon:

TRACKER MAP
Karula_March11_afternoon
https://drive.google.com/open?id=1FeF7m ... sp=sharing

Image

At 09:13:24 (local time) this morning, breakfast was served closeby. Karula just had to cross the Jordan River. :D
Image
“Clearly, animals know more than we think, and think a great deal more than we know.”
— Irene Pepperberg

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