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--- atmos:citation:field:saudifall2023:home [2026/06/02 18:30] – [Cloud Core C and D] paramvir.singh
+++ atmos:citation:field:saudifall2023:home [2026/06/16 19:42] (current) – [Cloud Core A] paramvir.singh
@@ Line 122: / Line 122: @@
 ==== Cloud Core A and B =====
+The 27 October 2023 Flight Engineer Report indicates that the aircraft is descending to 19.5 kft at 11:01 UTC to sample clouds at the -10 ºC level. A 19.5 kft sample is conducted at 11:12 (40,320 sfm) UTC. After missing the cloud at 11:14 pass, the same clouds are sampled at 11:16 (40,560) UTC at 21.0 kft. Hence, there are two passes of cloud 20231027A. A new cloud is located at 11:23 UTC. Cloud 20231027B is sampled at 22 kft at 11:33 (41,580 sfm) UTC, at 23 kft at 11:37 (41,820) UTC, and at 24 kft at 11:42 (42120) UTC.
+//Table 6: Listing of the time segments during sampling of convective cloud cores A and B. The letter in the Flight ID indicates the cloud label, and the number indicates the pass on the cloud. The Pressure Altitude reported by the aircraft's pilot is recorded in the flight notes. The air temperature is from a 1 Hz Wing Probe Rosemount temperature probe data contained in the project's science file. "O" signifies out-of-cloud data, with each segment lasting 10 seconds, and at least 10 seconds prior to entering the cloud.//
-|Flight     |M300   |M300   |Core   |Press.|C-Tem |C-Tem |M300     |M300   |O-Tem |O-Tem |O-DewT |O-DewT|RH  |RH  |
+|Flight       |M300   |M300   |Core   |Press.   | C -Tem     |C -Tem    |M300    |M300   | O-Tem   | O-Tem   | O-DewT   | O-DewT   |RH   |RH   |
 |  ID       |C-Start|C-End  |C-To   |Height|Mean  |STD   |C-Start  |C-End  |Mean  |STD   |Mean   |STD   |Mean|STD |
 |Date-Cloud |SFM    |SFM    |s      |kft   |°C    |°C    |SFM      |SFM    |°C    |°C    |°C     |°C    |%   |%   |
-|20231027A-1|40359.6|40365.6|6.0    |19.5  |-10.9 |0.5   |40339.2  |40349.2|-9.7  |0.4   |-59.9  |1.9        |1.2 |0.5 |
+|20231027A-1  |40359.6|40365.6|6.0    |19.5  |-10.9 |0.5   |40331.2  |40341.2|-9.2  |0.4   |-62.0  |0.4        |0.7 |0.1 |
-|20231027A-2|40772.3|40775.8|3.5    |21.0  |-13.6 |0.2   |40751.74 |40762.4|-12.3 |0.5   |-50.4  |2.6        |5.1 |1.5 |
+|20231027A-2  |40772.3|40775.8|3.5    |21.0  |-13.6 |0.2   |40739.2  |40749.2|-12.4 |0.2   |-58.7  |2.3        |1.7 |0.6 |
-|-----------|-------|-------|-------|------|------|------|---------|-------|------|------|-------|--|-----------|
+|-----------  |-------|-------|-------|------|------|------|---------|-------|------|------|-------|--|-----------|
-|20231027B-1|40989.5|40995.0|5.5    |19.5  |-10.5 |0.2   |40969.5  |40979.5|-10.6 |0.2   |-38.3  |9.0        |17.3|16.8|
+|20231027B-1  |40989.5|40995.0|5.5    |19.5  |-10.5 |0.2   |40975.1  |40978.4|-9.8  |0.1   |-43.1  |1.2        |8.5 |1.7 |
-|20231027B-2|41316.0|41321.5|5.5    |21.0  |-11.7 |0.9   |41296.0  |41306.0|-11.8 |0.1   |-58.9  |1.6        |1.6 | 0.4|
+|20231027B-2  |41316.0|41321.5|5.5    |21.0  |-11.7 |0.9   |41295.2  |41305.2|-11.9 |0.2   |-59.2  |1.5        |1.5 | 0.3|
-|20231027B-3|41635.0|41640.0|5.0    |22.0  |-15.9 |0.2   |41615.0  |41625.0|-14.8 |0.2   |-54.6  |1.0|3.6 |0.4 |
+|20231027B-3  |41635.0|41640.0|5.0    |22.0  |-15.9 |0.2   |41615.2  |41625.2|-14.8 |0.2   |-54.6  |1.0|3.6 |0.4 |
 ==== Cloud Core C and D ====
+The 27 October 2023 Flight Engineer Report indicates that the aircraft descended to 20.0 kft at 11:48 UTC to sample clouds at -10ºC level. First pass on Cloud C at 11:55 (42,900 sfm)UTC, which has an AIMMS issue resulting in the need for recycling.Second pass at 22 kft at -15C at 11:58 (43,080 sfm) and third pass at 23 kft at 12:04( 43,440 sfm). And a new cloud was sampled at 12:08 (43,680 sfm) at 20 kft before returning to base due to low fuel and being too late in the day.
+//Table 3: Listing of the time segments during sampling of convective cloud cores C and D. The letter in the Flight ID indicates cloud label, and the number indicates the pass on the cloud. The Pressure Altitude reported by the aircraft's pilot is recorded in the flight notes. The air temperature is from a 1 Hz Wing Probe Rosemount temperature probe data contained in the project's science file. The cloud C below is the measurement of cloud after recycling the AIMMS.//
 |Flight     |M300   |M300   |Core   |Press.|C-Tem |C-Tem |M300     |M300   |O-Tem |O-Tem |O-DewT |O-DewT|RH  |RH  |
 |  ID       |C-Start|C-End  |C-To   |Height|Mean  |STD   |C-Start  |C-End  |Mean  |STD   |Mean   |STD   |Mean    |STD |
@@ Line 140: / Line 147: @@
 |20231027D-1|43694.8|43697.7|2.9    |20.0  |-11.8 |0.2   |43674    |43784  |-10.9|0.1|-62.3|0.3|0.8|0.0|
+===== 28 October 2023 ======
+On 28 October 2023 there are four cloud cores sampled, which are labeled A, B, C, and D, each sampled at multiple altitudes. All clouds cores are were not seeded with AgI.
+==== Cloud Core A ====
+//Table 4: Listing of time segments during sampling of convective cloud A from 10:59 (39,540 sfm) to 11:05 (39,990 sfm).  The letter in the Flight ID indicate cloud label and number indicate pass on the cloud. The Pressure Altitude from the aircraft's pilot reports recorded in flight notes. The air temperature is from 1 Hz Wing Probe Rosemount temperature probe data contained in the project's science file. Cloud 20231028A-1 had three high droplet concentration region (between 39,561-39586.34 sfm; however, only the last had higher effective radius, which indicate the main update on the front side of the cloud. Cloud 20231028A-2 and 20231028A-3 were non-updraft core, cloud samples. Cloud 20231028A-4 had 5 seconds of higher concentration droplets 39,855-39860; however only the small period was on the front side with high droplet concentration.//
+|    Flight        |M300      |M300      |Core   |Press.  |C-Tem  |C-Tem  |M300     |M300   |O-Tem  |O-Tem  |O-DewT    |O-DewT  | RH  | RH |
+|   ID             |Start     |End       |Total  |Height  |Mean   |STD    |C-Start  |C-End  |Mean   |STD             |Mean      |STD     |Mean |STD |
+| Date-Cloud       |SFM       |SFM       |s      |kft     |°C     |°C     |SFM      | SFM   |°C     |°C   |°C     |°C    |% |%   |
+|   20231028A-1    |39584.96|39586.34|1.38 |19.0  |-10.6| 0.19|39541.4|39544.4|-10.7|0.0 |-23.9 |0.3 |33.9 | 1.0 |
+|   20231028A-2    |39859.20|39859.70|0.5  |21.0  |-15.3| 0.32|39828.4|39838.4|-14.6|0.2 |-23.2 |2.3 |49.9 |10.2|
+|   20231028A-3    |        |        |     |21.0  |     |     |40086.4|40096.4|-14.5|0.1 |-29.4 |0.4 |28.3 |1.1 |
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